MathCAMPS Logo

LLemma 7B on 1.OA.D.8

Common Core Standard 1.OA.D.8

This standard covers the following:

Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.

🔗 Problem

Problem: A number game starts with the number 13. To reach the number 14, a certain number must be added. What is that number?

LLemma 7B:

 Reasoning: 13+1 = 14.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: A car rental company had a total of 17 cars available in the morning. By the end of the day, they only had 4 cars left. How many cars were rented out during the day?

LLemma 7B:

 Reasoning: 17-4 = <<17-4=13>>13 cars were rented out during the day.
### Answer: 13

Expected answer: 13

Correct? Yes

🔗 Problem

Problem: A butterfly collector managed to catch 13 beautiful butterflies one morning. If at the end of the day there are only 6 butterflies in his collection, how many butterflies flew away during the day?

LLemma 7B:

 Reasoning: 13-6=<<13-6=7>>7 butterflies flew away during the day.
### Answer: 7

Expected answer: 7

Correct? Yes

🔗 Problem

Problem: After a birthday party, you see one piece of cake left. If you originally had a whole cake that was cut into h slices, and each slice was equal in size, then how many slices were there in the whole cake, given that 12 pieces have been eaten during the party?

LLemma 7B:

 Reasoning: 12/h = <<12/h=1>>1
h = <<h=12>>12
### Answer: 12

Expected answer: 13

Correct? No

🔗 Problem

Problem: Anne has a collection of socks. She bought 15 new pairs and now she has a total of 20 pairs of socks. How many pairs did she originally have?

LLemma 7B:

 Reasoning: Anne has 20-15 = <<20-15=5>>5 pairs of socks originally.
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: A party decorator started with 8 helium balloons. After several accidents, only 1 balloon remained uninflated. How many balloons did the decorator accidentally inflate?

LLemma 7B:

 Reasoning: 8-1=<<8-1=7>>7 balloons were accidentally inflated.
### Answer: 7

Expected answer: 7

Correct? Yes

🔗 Problem

Problem: Jane started with 4 pencils. By the end of the day, she had 5 pencils. How many pencils did she find during the day?

LLemma 7B:

 Reasoning: Jane started with 4 pencils. By the end of the day, she had 5 pencils.
Jane found 5-4 = <<5-4=1>>1 pencil during the day.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: Oliver the dog has collected a total of 'o' bones in his backyard. If he would give 19 of these bones to his friend, he would be left with only 1 bone. How many bones did Oliver originally have in his backyard?

LLemma 7B:

 Reasoning: Oliver has 1 bone left after giving 19 bones to his friend.
Oliver has 1 bone + 19 bones = <<1+19=20>>20 bones in his backyard.
### Answer: 20

Expected answer: 20

Correct? Yes

🔗 Problem

Problem: A superhero has a base super strength level of 1. However, when our superhero dons their super strength amulet, their strength level enhances to a total of 12 units. How many extra strength units does the super strength amulet provide?

LLemma 7B:

 Reasoning: The amulet provides 12-1 = <<12-1=11>>11 extra strength units.
### Answer: 11

Expected answer: 11

Correct? Yes

🔗 Problem

Problem: A train station has 17 trains scheduled for departure in a day. By late evening, only 15 are left to depart. How many trains have already departed during the day?

LLemma 7B:

 Reasoning: 17-15 = <<17-15=2>>2 trains have already departed during the day.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: A pencil factory had 11 pencils ready in the morning. By the end of the day, they had a total of 16 pencils after making a few more. How many more pencils did the factory make during the day?

LLemma 7B:

 Reasoning: 16-11 = <<16-11=5>>5 more pencils.
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: The lifeguard started the day with a certain number of towels, but after handing some out, he only had 10 remaining. If he originally had 9 more than the remaining amount, how many towels did the lifeguard start with?

LLemma 7B:

 Reasoning: The lifeguard started with 10+9 = <<10+9=19>>19 towels.

Expected answer: 19

Correct? Yes

🔗 Problem

Problem: There were originally 14 candy bars in the candy jar. After a few hours, there are only 10 candy bars left. How many candy bars were taken?

LLemma 7B:

 Reasoning: 14-10 = <<14-10=4>>4 candy bars were taken.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: In a park, there were originally 19 swings. After some use, there were only 14 swings left undamaged. How many swings were damaged?

LLemma 7B:

 Reasoning: 19-14=<<19-14=5>>5 swings were damaged.
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: A bottle manufacturing factory had already produced 5 bottles this morning, but their daily goal was to produce 12 bottles. How many more bottles need to be produced to reach the goal?

LLemma 7B:

 Reasoning: 12-5 = <<12-5=7>>7 more bottles need to be produced to reach the goal.
### Answer: 7

Expected answer: 7

Correct? Yes

🔗 Problem

Problem: Samantha has 13 green crayons. In total, she has 15 crayons. How many of her crayons are not green?

LLemma 7B:

 Reasoning: Samantha has 15-13 = <<15-13=2>>2 crayons that are not green.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: A photography store starts the day with 9 digital cameras in stock. By the end of the day, they have 14 digital cameras in the store after receiving new stock. How many new digital cameras did they receive?

LLemma 7B:

 Reasoning: 14-9 = <<14-9=5>>5 new digital cameras.

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: A camper has 4 sleeping bags in their tent. Later on, they find 11 sleeping bags in total after their friends drop off their bags. How many sleeping bags did the camper's friends bring?

LLemma 7B:

 Reasoning: The camper's friends brought 11-4 = <<11-4=7>>7 sleeping bags.
### Answer: 7

Expected answer: 7

Correct? Yes

🔗 Problem

Problem: A crazy cat lady had 7 cats. After adopting a number of stray cats, her total number of cats increased to 20. How many stray cats did she adopt?

LLemma 7B:

 Reasoning: 20-7=<<20-7=13>>13
### Answer: 13

Expected answer: 13

Correct? Yes

🔗 Problem

Problem: Bill found 1 pair of binoculars in his drawer. He then realized that his total number of binoculars is 19 pairs when he added the ones he found in the attic. How many binoculars did Bill find in his attic?

LLemma 7B:

 Reasoning: Bill found 1 pair of binoculars in his drawer.
He then realized that his total number of binoculars is 19 pairs when he added the ones he found in the attic.
19 pairs = 19*2 = <<19*2=38>>38 binoculars
Bill found 38-1 = <<38-1=37>>37 binoculars in his attic.
### Answer: 37

Expected answer: 18

Correct? No

🔗 Problem

Problem: In a wildlife sanctuary, at the start of the day, there were 14 elephants hanging around the water hole. By afternoon, the number of elephants increased to 16. How many new elephants arrived at the water hole?

LLemma 7B:

 Reasoning: 16-14=<<16-14=2>>2 new elephants arrived at the water hole.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: A mountain climber starts at a point that is m feet high. After climbing downwards for a while, they reach a point that's 10 feet high. If they had climbed down 4 feet to reach this point, how high was the point where they started?

LLemma 7B:

 Reasoning: The mountain climber started at <<m>> feet high.
They climbed down <<10-4=6>> feet to reach a point that's 10 feet high.
<<m+6=10>>
<<m=10-6=4>>
The mountain climber started at 4 feet high.
### Answer: 4

Expected answer: 14

Correct? No

🔗 Problem

Problem: The color palette had a total of 12 color options. If 6 of those colors were warm colors, how many were cool colors?

LLemma 7B:

 Reasoning: 12-6=<<12-6=6>>6 cool colors.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: A pirate had 8 shiny gold coins in his treasure chest in the morning. By sunset, he had a total of 14 shiny gold coins in his chest. How many shiny gold coins did the pirate find during the day?

LLemma 7B:

 Reasoning: 14-8 = <<14-8=6>>6 shiny gold coins.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: A turtle starts with 8 pieces of lettuce. After eating some more lettuce, it ends up with a total of 19 pieces of lettuce. How many pieces of lettuce does the turtle eat?

LLemma 7B:

 Reasoning: 8+<<19-8=11>>11 = 19
The turtle eats 11 pieces of lettuce.
### Answer: 11

Expected answer: 11

Correct? Yes

🔗 Problem

Problem: A river was flowing at a speed of 6 km/hr by late morning. In the early morning, its speed was 4 km/hr less. What was the speed of the river in the early morning?

LLemma 7B:

 Reasoning: The speed of the river in the early morning was 6-4 = <<6-4=2>>2 km/hr.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: In a children's alphabet game, there were initially 6 letter blocks. After a while, only 1 letter block remained on the game station. How many letter blocks were removed from the game station?

LLemma 7B:

 Reasoning: 6-1=<<6-1=5>>5 letter blocks were removed from the game station.
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: At a party, 3 people decided to leave early. After their departure, 15 people remained at the party. How many people were originally at the party before anyone left?

LLemma 7B:

 Reasoning: 15-3=<<15-3=12>>12 people were originally at the party before anyone left.
### Answer: 12

Expected answer: 18

Correct? No

🔗 Problem

Problem: Lucy has 9 letters in her mailbox initially. By the end of the day, she receives some more letters and the total number of letters in the mailbox is 19. How many letters does Lucy receive during the day?

LLemma 7B:

 Reasoning: Lucy receives 19-9 = <<19-9=10>>10 letters during the day.
### Answer: 10

Expected answer: 10

Correct? Yes

🔗 Problem

Problem: In the food pantry, there were originally 17 cans of beans. Over the course of the day, some cans were distributed to people, and at the end of the day, there were 13 cans left. How many cans of beans were distributed that day?

LLemma 7B:

 Reasoning: 17-13 = <<17-13=4>>4 cans of beans were distributed that day.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: A sock store started their day with 3 pairs of red socks. During the day, they decided to add more of the same socks following a new shipment. By the end of the day, they had 15 pairs of red socks. How many pairs of red socks did they add to their inventory?

LLemma 7B:

 Reasoning: They started with 3 pairs of red socks. They added 15-3 = <<15-3=12>>12 pairs of red socks.

Expected answer: 12

Correct? Yes

🔗 Problem

Problem: A farmer has 9 apple trees in his orchard already. Later, he decides to plant a number of new apple trees. After the planting, the total number of apple trees he has is 18. How many new apple trees did he plant?

LLemma 7B:

 Reasoning: 18 - 9 = <<18-9=9>>9 new apple trees.
### Answer: 9

Expected answer: 9

Correct? Yes

🔗 Problem

Problem: A stationery store displayed 3 pens at the start of the day. By the end of the day, they had 8 pens on the display. How many pens did they add to the display during the day?

LLemma 7B:

 Reasoning: 8-3=<<8-3=5>>5 pens were added to the display.
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: A marine biologist counts that there are 8 sharks currently swimming around the deep sea observatory. If the observatory initially had 7 sharks, how many new sharks arrived?

LLemma 7B:

 Reasoning: 8-7=<<8-7=1>>1 new shark arrived.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: A kid's slide has 5 steps. By adding some more steps, the total becomes 8. How many steps were added to the slide?

LLemma 7B:

 Reasoning: 5+<<5+x=8>>8=5+x=8
x=<<8-5=3>>3
3 steps were added to the slide.
### Answer: 3

Expected answer: 3

Correct? Yes

🔗 Problem

Problem: Chris has a collection of skateboards. After giving away 4 of his skateboards to friends, he ends up with 8 skateboards left. How many skateboards did Chris have at the beginning?

LLemma 7B:

 Reasoning: 8-4=<<8-4=4>>4 skateboards left.
Chris had 4+4 = <<4+4=8>>8 skateboards at the beginning.
### Answer: 8

Expected answer: 12

Correct? No

🔗 Problem

Problem: A pirate ship had a certain number of cannons. After a rough sea battle, it was left with 6 cannons. If the ship lost 5 cannons during the fight, how many cannons did it have before the battle?

LLemma 7B:

 Reasoning: 6+5=<<6+5=11>>11
The ship had 11 cannons before the battle.
### Answer: 11

Expected answer: 11

Correct? Yes

🔗 Problem

Problem: A police department started the day with 16 patrol cars. As the day went on, some patrol cars were sent out on various assignments. By the afternoon, there were only 10 patrol cars left at the station. How many patrol cars were sent out on assignments?

LLemma 7B:

 Reasoning: 16-10=<<16-10=6>>6 patrol cars were sent out on assignments.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: Initially, there were 12 pillows in a store. By the end of the day, there were only 6 pillows left. How many pillows were sold during the day?

LLemma 7B:

 Reasoning: 12-6=<<12-6=6>>6 pillows were sold during the day.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: Billy began packing for a camping trip. He already had 4 items in his backpack. By the time he stopped packing, there were 10 items total in his backpack. How many additional items did Billy add to his backpack?

LLemma 7B:

 Reasoning: Billy added 10-4 = <<10-4=6>>6 additional items to his backpack.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: A jungle gym has 8 swings installed. Later in the day, more swings were added and the total number of swings became 20. How many more swings were added to the jungle gym?

LLemma 7B:

 Reasoning: 20-8 = <<20-8=12>>12 more swings were added to the jungle gym.
### Answer: 12

Expected answer: 12

Correct? Yes

🔗 Problem

Problem: In a wind energy farm, there are 15 wind turbines already operational. The total number of wind turbines in the farm is 17. How many more wind turbines were constructed and added to the farm?

LLemma 7B:

 Reasoning: 17-15=<<17-15=2>>2
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: James owns a juice bar where he had 18 bottles of apple juice. After restocking, he counts a total of 20 bottles. How many bottles of apple juice did he add to the stock?

LLemma 7B:

 Reasoning: James added 20-18 = <<20-18=2>>2 bottles of apple juice.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: John started his guitar lessons with a collection of certain number of guitar picks. After playing for a while, he noticed that he has only 6 picks left, having lost 1. How many guitar picks did John originally start with?

LLemma 7B:

 Reasoning: John lost 1 pick.
John started with 6+1 = <<6+1=7>>7 picks.
### Answer: 7

Expected answer: 7

Correct? Yes

🔗 Problem

Problem: A florist starts their day with 7 daisies in their display. During the day they add some more daisies and by the end of the day, the total count of daisies is 9. How many daisies did they add during the day?

LLemma 7B:

 Reasoning: 7+<<9-7=2>>2=9
They added 9-7=<<9-7=2>>2 daisies during the day.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: A firefighter hears a total of 6 alarms in one day. If he had heard 4 alarms before lunch, how many alarms did he hear after lunch?

LLemma 7B:

 Reasoning: 6-4=<<6-4=2>>2 alarms after lunch.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: A crazy cat lady starts the day with 18 cats in her living room. After letting some of them go outside to play, only 17 cats remain in the living room. How many cats went outside to play?

LLemma 7B:

 Reasoning: 17-18 = <<17-18=-1>>-1 cat went outside to play.
### Answer: -1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: A small snowman is built using 3 large snowballs. Over time, the snowman grows by an additional number of snowballs and becomes comprised of a total of 4 large snowballs. How many more snowballs were added to the snowman?

LLemma 7B:

 Reasoning: 4-3=<<4-3=1>>1 more snowballs were added to the snowman.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: A fruit seller had 14 oranges in his basket. After some time, he found that he had 16 oranges in total after collecting some from his garden. How many oranges did he collect from his garden?

LLemma 7B:

 Reasoning: 14+<<16-14=2>>2=16
He collected 2 oranges from his garden.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: At the start of an art project, you already have 13 red crayons in your art box. By the end of the day, after adding some more red crayons, you have a total of 16 red crayons. How many red crayons did you add in during the day?

LLemma 7B:

 Reasoning: You already have 13 red crayons in your art box. By the end of the day, after adding some more red crayons, you have a total of 16 red crayons.
You added 16-13 = <<16-13=3>>3 red crayons in during the day.
### Answer: 3

Expected answer: 3

Correct? Yes

🔗 Problem

Problem: A puzzle maker had finished creating 11 picture puzzles by the end of last month. This month, he created a few more and now has a total of 20 picture puzzles. How many picture puzzles did the puzzle maker create this month?

LLemma 7B:

 Reasoning: The puzzle maker created 20-11 = <<20-11=9>>9 picture puzzles this month.
### Answer: 9

Expected answer: 9

Correct? Yes

🔗 Problem

Problem: In a garden, there were originally 11 red roses. But by the end of the week, only 1 red rose was left after some were picked. How many red roses were picked from the garden during the week?

LLemma 7B:

 Reasoning: 11-1=<<11-1=10>>10 roses were picked from the garden during the week.
### Answer: 10

Expected answer: 10

Correct? Yes

🔗 Problem

Problem: A farmer had 16 apples in his basket. After some time, he noticed that there were only 5 apples left in his basket. How many apples were taken from the basket?

LLemma 7B:

 Reasoning: 16-5=<<16-5=11>>11 apples were taken from the basket.
### Answer: 11

Expected answer: 11

Correct? Yes

🔗 Problem

Problem: An Unidentified Flying Object (UFO) was initially having 5 alien occupants on board. After some universal travels, the UFO had 8 alien occupants. How many extra aliens joined the UFO during its journey?

LLemma 7B:

 Reasoning: 8-5=<<8-5=3>>3 extra aliens joined the UFO during its journey.
### Answer: 3

Expected answer: 3

Correct? Yes

🔗 Problem

Problem: A toy store had 13 toy cars at the beginning of the day. By the end of the day, there was only 1 toy car left on the shelf. How many toy cars were sold during the day?

LLemma 7B:

 Reasoning: 13-1=<<13-1=12>>12 toy cars were sold during the day.
### Answer: 12

Expected answer: 12

Correct? Yes

🔗 Problem

Problem: A robot factory had 18 fully operational robots at the beginning of the day. But by the end of the day, there were only 16 operational robots left. How many robots stopped functioning during the day?

LLemma 7B:

 Reasoning: 18-16 = <<18-16=2>>2 robots stopped functioning during the day.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: A circus has a certain number of tigers. After selling 3 of them to a zoo, they have 8 tigers left. How many tigers did the circus have originally?

LLemma 7B:

 Reasoning: 8-3=<<8-3=5>>5 tigers left.
5+3=<<5+3=8>>8 tigers originally.
### Answer: 8

Expected answer: 11

Correct? No

🔗 Problem

Problem: The tiger population in a nature reserve was originally 15. Over time, perilous conditions led to the demise of some of the tigers, leaving only 5 tigers in the reserve. How many tigers were lost?

LLemma 7B:

 Reasoning: 15-5=<<15-5=10>>10 tigers were lost.
### Answer: 10

Expected answer: 10

Correct? Yes

🔗 Problem

Problem: The Jackson family has 6 jackets to begin with but they purchased some more at a yard sale. If they now have 12 jackets total, how many jackets did they purchase at the yard sale?

LLemma 7B:

 Reasoning: 6+x=12
x=12-6
x=<<12-6=6>>6
They purchased 6 jackets at the yard sale.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: A train initially has 16 cars. Part way through its journey, it detaches some cars and continues on with only 8 cars. How many train cars were detached during the journey?

LLemma 7B:

 Reasoning: The train started with 16 cars and ended with 8 cars.
16 - 8 = <<16-8=8>>8 cars were detached during the journey.
### Answer: 8

Expected answer: 8

Correct? Yes

🔗 Problem

Problem: A jewelry store has 1 bracelet in stock. Later, the store receives a fresh shipment, and the total number of bracelets increases to 4. How many bracelets were in the new shipment?

LLemma 7B:

 Reasoning: 4-1 = <<4-1=3>>3 bracelets were in the new shipment.
### Answer: 3

Expected answer: 3

Correct? Yes

🔗 Problem

Problem: A school bus started its morning route with 14 students on board. After dropping off some students at their respective schools, there were only 7 students left on the bus. How many students were dropped off in the morning?

LLemma 7B:

 Reasoning: 14-7=<<14-7=7>>7 students were dropped off in the morning.
### Answer: 7

Expected answer: 7

Correct? Yes

🔗 Problem

Problem: A cheese maker produced 9 pounds of swiss cheese one morning. By the end of the day, the total cheese production was 16 pounds. How much more cheese (in pounds) was produced by the end of the day?

LLemma 7B:

 Reasoning: 16-9 = <<16-9=7>>7
### Answer: 7

Expected answer: 7

Correct? Yes

🔗 Problem

Problem: Sarah counted her pillows and found out that she has a total of 6 pillows. If she recalls correctly, 4 of them are stuffed with feathers and the rest are stuffed with foam. How many of her pillows are stuffed with foam?

LLemma 7B:

 Reasoning: 6-4 = <<6-4=2>>2 pillows are stuffed with foam.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: A binoculars maker started with 7 binoculars in the morning. By late afternoon, she had added few more, making a total of 11 binoculars. How many binoculars did she make in the afternoon?

LLemma 7B:

 Reasoning: 11-7=<<11-7=4>>4 binoculars in the afternoon.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: In a playground, there are originally 3 balls. As the day progresses, kids bring in some more balls and by the end of day, the total number of balls in the playground is 8. How many balls did kids bring to the playground?

LLemma 7B:

 Reasoning: 3+<<kids>> = 8
<<kids>> = 8-3 = <<8-3=5>>5
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: A fashion designer started with a total of a certain number of blue dresses. After selling 13 of them, there were only 2 left in stock. How many blue dresses did the designer start with?

LLemma 7B:

 Reasoning: 2/13 = <<2/13=0.15>>0.15.
13 x 0.15 = <<13*0.15=1.95>>1.95.
1.95 + 13 = <<1.95+13=15.95>>15.95.
The designer started with 15.95 blue dresses.
### Answer: 15.95

Expected answer: 15

Correct? No

🔗 Problem

Problem: In a party, there were 2 helium balloons floating above a child. Suddenly one of them popped, leaving just 1 balloon. How many balloons popped?

LLemma 7B:

 Reasoning: 2-1=<<2-1=1>>1 balloon popped.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: A pirate has stashed away 4 of his gold coins and now has only 1 left with him. How many gold coins did the pirate originally have before stashing them away?

LLemma 7B:

 Reasoning: 4+1 = <<4+1=5>>5
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: A desk drawer had 6 pens at the beginning of the day. At the end of the day, it acquired a total of 12 pens because some were dropped off in the drawer by office workers. How many pens did office workers drop off in the drawer throughout the day?

LLemma 7B:

 Reasoning: The number of pens in the drawer at the end of the day is 6+12 = <<6+12=18>>18.
The number of pens dropped off in the drawer throughout the day is 18-6 = <<18-6=12>>12.
### Answer: 12

Expected answer: 6

Correct? No

🔗 Problem

Problem: A shape enthusiast begins with a collection of 15 different types of shapes. Later, she decides to give some away and is left with 11 types of shapes. How many different types of shapes did she give away?

LLemma 7B:

 Reasoning: 15-11=<<15-11=4>>4
She gave away 4 different types of shapes.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: A student has a backpack that initially contains 3 pencils. Later in the day, the student adds some more pencils to the backpack, bringing the total count to 20 pencils. How many additional pencils did the student put in the backpack?

LLemma 7B:

 Reasoning: The student added 20-3 = <<20-3=17>>17 pencils to the backpack.
### Answer: 17

Expected answer: 17

Correct? Yes

🔗 Problem

Problem: A zookeeper has 6 monkeys in one enclosure. Later in the day, some more monkeys are transferred into the enclosure, making a total of 7 monkeys. How many monkeys were transferred?

LLemma 7B:

 Reasoning: 6+1=<<6+1=7>>7 monkeys were transferred.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: You were packing for a camping trip and counted 13 sleeping bags at the start. But when you finished packing, only 1 sleeping bag was left behind. How many sleeping bags did you pack for the trip?

LLemma 7B:

 Reasoning: 13-1=<<13-1=12>>12 sleeping bags were packed for the trip.
### Answer: 12

Expected answer: 12

Correct? Yes

🔗 Problem

Problem: A public park starts the day with 9 benches. By afternoon, they install some new ones making the total number of benches 10. How many new benches were installed?

LLemma 7B:

 Reasoning: 9+<<10-9=1>>1=1 new benches were installed.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: A mermaid has 9 shimmering scales on her tail. But after a tough underwater race, she realizes that she has lost some, leaving her with just 4 intact scales. How many scales did the mermaid lose during the race?

LLemma 7B:

 Reasoning: The mermaid lost 9-4 = <<9-4=5>>5 scales during the race.
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: A band has prepared 8 songs for a live performance. By the end of the concert, they've played 17 songs, due to audience requests and encore performances. How many additional songs did they end up playing?

LLemma 7B:

 Reasoning: 8+17=<<8+17=25>>25 songs
### Answer: 25

Expected answer: 9

Correct? No

🔗 Problem

Problem: A hat maker starts a day with a certain number of wool hats in his shop. By noon, he sold 6 of these hats and was left with 9 hats. How many wool hats did he start the day with?

LLemma 7B:

 Reasoning: 9/6 = <<9/6=1.5>>1.5
1.5*6 = <<1.5*6=9>>9
### Answer: 9

Expected answer: 15

Correct? No

🔗 Problem

Problem: A soap shop has 14 soaps in their inventory at the start of the day. By the end of the day, the total inventory counts to 19 soaps after making some more. How many soaps did they make during the day?

LLemma 7B:

 Reasoning: 19-14 = <<19-14=5>>5 soaps were made during the day.
### Answer: 5

Expected answer: 5

Correct? Yes

🔗 Problem

Problem: Sylvia starts making soap with 10 bars from her last huge batch. By the end of the day, she ends up with 14 bars of soap by creating a few new ones. How many new bars of soap did Sylvia make?

LLemma 7B:

 Reasoning: Sylvia made 10+4 = <<10+4=14>>14 bars of soap.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: A rope factory starts the day producing a rope of 13 meters long. By the end of the day, another rope, combined with the first one, makes up a total of 19 meters of rope. How long is the second rope they produced?

LLemma 7B:

 Reasoning: The first rope is 13 meters long. The second rope is 19-13 = <<19-13=6>>6 meters long.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: There were 2 beach balls scattered around the beach early in the morning. As the day progressed, there were 12 beach balls all over the beach. How many beach balls did the beach visitors bring with them?

LLemma 7B:

 Reasoning: 12 - 2 = <<12-2=10>>10
### Answer: 10

Expected answer: 10

Correct? Yes

🔗 Problem

Problem: A group of friends on a camping trip only had 1 piece of firewood left early in the night. By the end of the night, they managed to find and collect 10 pieces of firewood altogether. How many extra pieces of firewood did they find that night?

LLemma 7B:

 Reasoning: They found 10-1 = <<10-1=9>>9 extra pieces of firewood.
### Answer: 9

Expected answer: 9

Correct? Yes

🔗 Problem

Problem: You have a music store with 18 guitars in stock. During the day, a customer comes and buys a number of guitars. By the end of the day, you count and find that you have 16 guitars left. How many guitars did the customer buy?

LLemma 7B:

 Reasoning: 18-16=<<18-16=2>>2 guitars.
### Answer: 2

Expected answer: 2

Correct? Yes

🔗 Problem

Problem: A bike shop has 4 mountain bikes on hand at the beginning of the day. By the end of the day, they have a total of 14 mountain bikes, as some new shipments have arrived. How many new mountain bikes were shipped to the shop today?

LLemma 7B:

 Reasoning: 4+<<14-4=10>>10 = 14
10 new mountain bikes were shipped to the shop today.
### Answer: 10

Expected answer: 10

Correct? Yes

🔗 Problem

Problem: A child starts with 2 blue colored pencils, and then a classmate gives them some more. In the end, they have 3 blue colored pencils. How many colored pencils did their classmate give them?

LLemma 7B:

 Reasoning: The child started with 2 blue colored pencils.
The child ended up with 3 blue colored pencils.
The classmate gave the child 3-2 = <<3-2=1>>1 blue colored pencil.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: The campsite initially had 15 tents. By the end of the day, 19 tents were pitched in total. How many more tents were set up during the day?

LLemma 7B:

 Reasoning: 19-15 = <<19-15=4>>4 more tents were set up during the day.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: A pirate found 7 gold coins in one of the treasure chests. By the end of his looting, he had a total of 16 gold coins. How many gold coins were in the other treasure chests he looted?

LLemma 7B:

 Reasoning: 16-7=<<16-7=9>>9 gold coins were in the other treasure chests he looted.
### Answer: 9

Expected answer: 9

Correct? Yes

🔗 Problem

Problem: You start with 12 dollars in your wallet. By the end of a shopping trip, you find that you now have 16 dollars left in your wallet after receiving some change. How much money in dollars did you receive as change during the trip?

LLemma 7B:

 Reasoning: You started with 12 dollars and now have 16 dollars left. You received 16-12 = <<16-12=4>>4 dollars in change.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: A rope manufacturing task is ongoing. From several short pieces, a worker succeeds in creating a rope that is 17 feet long. If one of these pieces was 11 feet long, how long were the rest of the pieces together?

LLemma 7B:

 Reasoning: The rest of the pieces together is 17-11 = <<17-11=6>>6 feet long.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: An artist had one blue colored pencil in her collection. After adding a pack of new pencils, she now has 13 colored pencils. How many colored pencils were there in the new pack?

LLemma 7B:

 Reasoning: The artist had 13-1 = <<13-1=12>>12 colored pencils in the new pack.
### Answer: 12

Expected answer: 12

Correct? Yes

🔗 Problem

Problem: A musician starts off with 17 guitar strings in his collection. After restringing some guitars, he is left with only 2 strings. How many guitar strings did the musician use?

LLemma 7B:

 Reasoning: 17-2=<<17-2=15>>15 guitar strings were used.
### Answer: 15

Expected answer: 15

Correct? Yes

🔗 Problem

Problem: There are 7 colors visible in a typical rainbow. If you have a special prism that shows a total of 13 colors in the rainbow, how many additional colors are visible through the prism?

LLemma 7B:

 Reasoning: 13-7=<<13-7=6>>6 additional colors are visible through the prism.
### Answer: 6

Expected answer: 6

Correct? Yes

🔗 Problem

Problem: A full grown giraffe typically grows to a height of x meters. But a young giraffe was just 1 meter shorter than a full grown one when it was 3 meters tall. What is the typical height of a fully grown giraffe in meters?

LLemma 7B:

 Reasoning: The young giraffe was 3-1=<<3-1=2>>2 meters tall when it was fully grown.
The young giraffe was 2+1=<<2+1=3>>3 meters tall when it was fully grown.
The young giraffe was 3+1=<<3+1=4>>4 meters tall when it was fully grown.
The young giraffe was 4+1=<<4+1=5>>5 meters tall when it was fully grown.
The young giraffe was 5+1=<<5+1=6>>6 meters tall when it was fully grown.
The young giraffe was 6+1=<<6+1=7>>7 meters tall when it was fully grown.
The young giraffe was 7+1=<<7+1=8>>8 meters tall when it was fully grown.
The young giraffe was 8+1=<<8+1=9>>9 meters tall when it was fully grown.
The young giraffe was 9+1=<<9+1=10>>10 meters tall when it was fully grown.
The young giraffe was 10+1=<<10+1=11>>11 meters tall when it was fully grown.
The young giraffe was 11+1=<<11+1=12>>12 meters tall when it was fully grown.
The young giraffe was 12+1=<<12+1=13>>13 meters tall when it was fully grown.
The young giraffe was 13+1=<<13+1=14>>14 meters tall when it was fully grown.
The young giraffe was 14+1=<<14+1=15>>15 meters tall when it was fully grown.
The young giraffe was 15+1=<<15+1=16>>16 meters tall when it was fully grown.
The young giraffe was 16+1=<<16+1=17>>17 meters tall when it was fully grown.
The young giraffe was 17+1=<<17+1=18>>18 meters tall when it was fully grown.
The young giraffe was 18+1=<<18+1=19>>19 meters tall when it was fully grown.
The young giraffe was 19+1=<<19+1=20>>20 meters tall when it was fully grown.
The young giraffe was 20+1=<<20+1=21>>21 meters tall when it was fully grown.
The young giraffe was 21+1=<<21+1=22>>22 meters tall when it was fully grown.
The young giraffe was 22+1=<<22+1=23>>23 meters tall when it was fully grown.
The young giraffe was 23+1=<<23+1=24>>24 meters tall when it was fully grown.
The young giraffe was 24+1=<<24+1=25>>25 meters tall when it was fully grown.
The young giraffe was 25+1=<<25+1=26>>26 meters tall when it was fully grown.
The young giraffe was 26+1=<<26+1=27>>27 meters tall when it was fully grown.
The young giraffe was 27+1=<<27+1=28>>28 meters tall when it was fully grown.
The young giraffe was 28+1=<<28+1=29>>29 meters tall when it was fully grown.
The young giraffe was 29+1=<<29+1=30>>30 meters tall when it was fully grown.
The young giraffe was 30+1=<<30+1=31>>31 meters tall when it was fully grown.
The young giraffe was 31+1=<<31+1=32>>32 meters tall when it was fully grown.
The young giraffe was 32+1=<<32+1=33>>33 meters tall when it was fully grown.
The young giraffe was

Expected answer: 4

Correct? No

🔗 Problem

Problem: In a pencil box, there were initially 10 pencils. Later, a student added some more pencils into the box and the total became 14. How many pencils did the student add to the box?

LLemma 7B:

 Reasoning: The student added 14-10 = <<14-10=4>>4 pencils to the box.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: A pillow factory has a stock of 14 feather pillows. After a small order is shipped, they have 4 feather pillows left. How many feather pillows were in the shipped order?

LLemma 7B:

 Reasoning: 14-4=<<14-4=10>>10 feather pillows were in the shipped order.
### Answer: 10

Expected answer: 10

Correct? Yes

🔗 Problem

Problem: A pizzeria has 15 pepperoni pizzas ready to be served. Throughout the day, they bake a number of additional pepperoni pizzas, bringing the total to 16 by the evening. How many additional pepperoni pizzas did they bake throughout the day?

LLemma 7B:

 Reasoning: 16 - 15 = <<16-15=1>>1
They baked 1 additional pepperoni pizza throughout the day.
### Answer: 1

Expected answer: 1

Correct? Yes

🔗 Problem

Problem: A band had prepared 11 songs to perform at a concert. However, they only managed to perform 7 songs due to technical problems. How many songs were they not able to perform at the concert?

LLemma 7B:

 Reasoning: 11-7 = <<11-7=4>>4 songs were not performed at the concert.
### Answer: 4

Expected answer: 4

Correct? Yes

🔗 Problem

Problem: A snowman has a certain number of snowballs stacked to form its shape. If 7 snowballs are removed, only 11 snowballs remain. How many snowballs were used to build the snowman originally?

LLemma 7B:

 Reasoning: 11+7 = <<11+7=18>>18 snowballs were used to build the snowman originally.
### Answer: 18

Expected answer: 18

Correct? Yes

🔗 Problem

Problem: In underwater kingdom, there were 10 mermaids at the beginning. After a while, there were 20 mermaids. How many new mermaids joined the kingdom?

LLemma 7B:

 Reasoning: 20-10=<<20-10=10>>10
### Answer: 10

Expected answer: 10

Correct? Yes