Addition and Subtraction within 100

Primary Mathematics · 80 lessons

There are 3 apples and 5 oranges on the table. How many objects are there in total? Choose the correct answer.

  • 6
  • 8
  • 7
  • 5
Why:

To find the total number of objects, you add the number of apples to the number of oranges.

There are 2 balls and 4 cars on the table. How many objects are there in total? Choose the correct answer.

  • 6
  • 5
  • 4
  • 3
Why:

To find the total number of objects, you add the number of balls to the number of cars.

There are 6 toys and 2 bears on the table. How many objects are there in total? Choose the correct answer.

  • 7
  • 8
  • 6
  • 5
Why:

To find the total number of objects, you add the number of toys to the number of bears.

There are 4 books and 3 blocks on the table. How many objects are there in total? Choose the correct answer.

  • 6
  • 7
  • 5
  • 8
Why:

To find the total number of objects, you add the number of books to the number of blocks.

There are 5 oranges and 3 apples on the table. How many objects are there in total? Choose the correct answer.

  • 8
  • 9
  • 7
  • 6
Why:

To find the total number of objects, you add the number of oranges to the number of apples.

There are 1 toy and 7 balls on the table. How many objects are there in total? Choose the correct answer.

  • 8
  • 7
  • 6
  • 5
Why:

To find the total number of objects, you add the number of toys to the number of balls.

There are 2 cars and 6 blocks on the table. How many objects are there in total? Choose the correct answer.

  • 7
  • 8
  • 6
  • 5
Why:

To find the total number of objects, you add the number of cars to the number of blocks.

There are 3 bears and 5 toys on the table. How many objects are there in total? Choose the correct answer.

  • 9
  • 8
  • 7
  • 6
Why:

To find the total number of objects, you add the number of bears to the number of toys.

There are 4 blocks and 4 apples on the table. How many objects are there in total? Choose the correct answer.

  • 9
  • 8
  • 7
  • 6
Why:

To find the total number of objects, you add the number of blocks to the number of apples.

There are 5 toys and 2 cars on the table. How many objects are there in total? Choose the correct answer.

  • 7
  • 8
  • 6
  • 5
Why:

To find the total number of objects, you add the number of toys to the number of cars.

Calculate: 7 - 3

  • 4
  • 5
  • 6
  • 2
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: 6 - 2

  • 3
  • 4
  • 5
  • 2
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: \(9 - 5\)

  • 3
  • 2
  • 4
  • 6
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: 8 - 3

  • 4
  • 5
  • 6
  • 2
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: 5 - 1

  • 4
  • 3
  • 2
  • 5
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: \(4 - 2\)

  • 2
  • 1
  • 3
  • 0
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: \(3 - 1\)

  • 1
  • 2
  • 0
  • 3
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: \(10 - 6\)

  • 4
  • 5
  • 3
  • 2
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: \(7 - 4\)

  • 3
  • 2
  • 1
  • 5
Why:

To find the answer, subtract the smaller number from the larger number.

Calculate: \(6 - 1\)

  • 5
  • 4
  • 3
  • 2
Why:

To find the answer, subtract the smaller number from the larger number.

There are 8 balls. 3 balls are taken away. How many balls are left? Choose the correct answer.

  • 4
  • 5
  • 3
  • 6
Why:

To find out how many balls are left, we subtract the number of balls taken away from the total number of balls.

There are 10 cookies. 2 cookies are taken away. How many cookies are left? Choose the correct answer.

  • 7
  • 8
  • 6
  • 3
Why:

To find out how many cookies are left, we subtract the number of cookies taken away from the total number of cookies.

There are 9 toys. 4 toys are taken away. How many toys are left? Choose the correct answer.

  • 6
  • 7
  • 5
  • 4
Why:

To find out how many toys are left, we subtract the number of toys taken away from the total number of toys.

There are 7 oranges. 1 orange is taken away. How many oranges are left? Choose the correct answer.

  • 6
  • 5
  • 7
  • 4
Why:

To determine how many oranges are left, we subtract the number of oranges taken away from the total number of oranges.

There are 6 cars. 2 cars are taken away. How many cars are left? Choose the correct answer.

  • 4
  • 5
  • 6
  • 3
Why:

To find out how many cars are left, we subtract the number of cars taken away from the total number of cars.

There are 5 books. 1 book is taken away. How many books are left? Choose the correct answer.

  • 3
  • 4
  • 2
  • 5
Why:

To find out how many books are left, we subtract the number of books taken away from the total number of books.

What is \(3 + 5 + 2\)?

  • 10
  • 8
  • 9
  • 7
Why:

To find the sum, first add 3 and 5 to get 8, then add 2 to 8 to get 10.

What is \(7 + 1 + 6\)?

  • 14
  • 13
  • 12
  • 11
Why:

First, add 7 and 1 to get 8, then add 6 to 8 to arrive at 14.

What is \(4 + 3 + 9\)?

  • 16
  • 15
  • 17
  • 14
Why:

Add 4 and 3 to get 7, then add 9 to 7 to get 16.

What is \(6 + 2 + 5\)?

  • 12
  • 13
  • 14
  • 11
Why:

First, add 6 and 2 to get 8, then add 5 to get 13.

What is \(8 + 1 + 4\)?

  • 13
  • 12
  • 14
  • 15
Why:

Add 8 and 1 to get 9, then add 4 to get 13.

What is 5 + 3 + 4?

  • 12
  • 11
  • 10
  • 13
Why:

First, add 5 and 3 to get 8, then add 4 to get 12.

What is \(9 + 0 + 7\)?

  • 16
  • 15
  • 14
  • 17
Why:

First, add 9 and 0 to get 9, then add 7 to reach 16.

What is \(2 + 6 + 9\)?

  • 17
  • 18
  • 16
  • 15
Why:

Add 2 and 6 to get 8, then add 9 to get 17.

What is 1 + 8 + 6?

  • 15
  • 16
  • 14
  • 13
Why:

First, add 1 and 8 to get 9, then add 6 to reach 15.

What is 4 + 5 + 3?

  • 12
  • 11
  • 10
  • 9
Why:

To find the sum, add 4 and 5 first to get 9, then add 3 to get 12.

Lily had 14 candies. She got 9 more. How many candies does Lily have now?

  • 23
  • 22
  • 24
  • 21
Why:

To find out how many candies Lily has now, add the number of candies she started with to the number she received.

Tom had 25 toys. He got 15 more. How many toys does Tom have now?

  • 40
  • 39
  • 41
  • 38
Why:

Tom's total number of toys is found by adding the toys he had to the additional toys he received.

Anna had 32 balloons. She got 18 more. How many balloons does Anna have now?

  • 50
  • 51
  • 48
  • 49
Why:

To determine how many balloons Anna has now, you need to add the original number of balloons to the additional balloons she received.

James had 18 apples. He got 11 more. How many apples does James have now?

  • 29
  • 28
  • 27
  • 30
Why:

To find the total number of apples James has, you add the apples he initially had to the number of additional apples he received.

Emma had 22 stickers. She got 16 more. How many stickers does Emma have now?

  • 38
  • 39
  • 37
  • 36
Why:

The total number of stickers Emma has can be found by adding the initial number of stickers to the number she received.

Mark had 21 books. He got 17 more. How many books does Mark have now?

  • 37
  • 38
  • 36
  • 39
Why:

To calculate the total number of books Mark has, you add the number of books he started with to the number he received.

Sophia had 36 marbles. She got 14 more. How many marbles does Sophia have now?

  • 50
  • 49
  • 51
  • 48
Why:

To find out how many marbles Sophia has, you need to sum the amount she had with the amount she received.

Oliver had 40 pencils. He got 20 more. How many pencils does Oliver have now?

  • 58
  • 59
  • 60
  • 57
Why:

To find the total number of pencils Oliver has now, add the initial number of pencils to the new ones he received.

Mia had 15 cookies. She got 12 more. How many cookies does Mia have now?

  • 27
  • 26
  • 28
  • 25
Why:

To find out how many cookies Mia has, you add the cookies she had to the cookies she received.

Noah had 33 crayons. He got 8 more. How many crayons does Noah have now?

  • 41
  • 40
  • 42
  • 39
Why:

To calculate the total number of crayons Noah has, add the crayons he started with to the additional crayons received.

Mary had 35 marbles. She gave away 12 marbles. How many marbles are left?

  • 23
  • 22
  • 28
  • 24
Why:

To find out how many marbles Mary has left, subtract the number of marbles she gave away from the number she initially had. The result is the number of marbles left.

John had 42 stickers. He gave away 15 stickers. How many stickers are left?

  • 27
  • 28
  • 26
  • 29
Why:

To determine how many stickers John has after giving some away, subtract the number of stickers he gave away from the total he had. This gives the number of stickers remaining.

Lisa had 50 candies. She gave away 18 candies. How many candies are left?

  • 32
  • 31
  • 33
  • 30
Why:

To find out how many candies Lisa has left, subtract the number of candies she gave away from the number she started with. The result shows how many candies remain.

Tom had 28 toys. He gave away 9 toys. How many toys are left?

  • 19
  • 20
  • 18
  • 21
Why:

To find the number of toys Tom has left, subtract the toys he gave away from the total he originally had. This gives the remaining number of toys.

Sara had 45 books. She gave away 22 books. How many books are left?

  • 23
  • 24
  • 21
  • 25
Why:

To calculate how many books Sara has left, subtract the number of books she gave away from the total she initially had. This gives the number of books remaining.

David had 60 apples. He gave away 25 apples. How many apples are left?

  • 35
  • 34
  • 36
  • 33
Why:

To find out how many apples David has left, you need to subtract the number of apples he gave away from the total he had. The result will show how many apples remain.

Emily had 39 balloons. She gave away 14 balloons. How many balloons are left?

  • 25
  • 26
  • 24
  • 27
Why:

To determine how many balloons Emily has left, subtract the number of balloons she gave away from the total she had. The result will indicate how many are remaining.

Jack had 70 cookies. He gave away 30 cookies. How many cookies are left?

  • 40
  • 39
  • 41
  • 38
Why:

To find out how many cookies Jack has left, subtract the number of cookies he gave away from the total he originally had. This will give the number of cookies remaining.

Calculate: 5 + 3

  • 7
  • 8
  • 6
  • 9
Why:

To find the sum, add 5 and 3 together. The result of this addition is 8.

Calculate: 2 + 6

  • 8
  • 7
  • 6
  • 9
Why:

Adding 2 and 6 together gives a total of 8.

Calculate: 1 + 7

  • 8
  • 6
  • 5
  • 7
Why:

When you add 1 and 7 together, the result is 8.

Calculate: 4 + 5

  • 9
  • 10
  • 8
  • 7
Why:

By adding 4 and 5, you get a total of 9.

Calculate: 3 + 6

  • 10
  • 9
  • 8
  • 7
Why:

Adding 3 and 6 results in a total of 9.

Calculate: 9 + 0

  • 9
  • 8
  • 10
  • 7
Why:

Adding 9 and 0 does not change the value, so the sum is still 9.

Calculate: 7 + 1

  • 8
  • 9
  • 6
  • 10
Why:

When you add 7 and 1, you get a total of 8.

Calculate: 8 + 1

  • 9
  • 10
  • 7
  • 8
Why:

Adding 8 and 1 gives you a total of 9.

Calculate: 6 + 2

  • 7
  • 8
  • 9
  • 10
Why:

When you add 6 and 2 together, the sum is 8.

Calculate: 5 + 4

  • 9
  • 10
  • 8
  • 7
Why:

Adding 5 and 4 results in a total of 9.

Sam collected 32 marbles on Monday. On Tuesday, Sam collected 20 more marbles. How many marbles did Sam collect in total?

  • 52
  • 51
  • 50
  • 53
Why:

To find the total number of marbles collected, add the marbles collected on Monday (32) to the marbles collected on Tuesday (20). The result is 52 marbles in total.

Li collected 48 shells on Monday. On Tuesday, Li collected 30 more shells. How many shells did Li collect in total?

  • 78
  • 79
  • 80
  • 77
Why:

To find the total number of shells collected, add the shells collected on Monday (48) to the shells collected on Tuesday (30). The result is 78 shells in total.

Anna collected 65 stickers on Monday. On Tuesday, Anna collected 40 more stickers. How many stickers did Anna collect in total?

  • 105
  • 106
  • 107
  • 104
Why:

To find the total number of stickers collected, add the stickers collected on Monday (65) to the stickers collected on Tuesday (40). The result is 105 stickers in total.

Ben collected 54 leaves on Monday. On Tuesday, Ben collected 20 more leaves. How many leaves did Ben collect in total?

  • 74
  • 75
  • 76
  • 73
Why:

To find the total number of leaves collected, add the leaves collected on Monday (54) to the leaves collected on Tuesday (20). The result is 74 leaves in total.

Tom collected 29 books on Monday. On Tuesday, Tom collected 10 more books. How many books did Tom collect in total?

  • 39
  • 40
  • 38
  • 41
Why:

To find the total number of books collected, add the books collected on Monday (29) to the books collected on Tuesday (10). The result is 39 books in total.

Sam collected 35 marbles on Monday. On Tuesday, Sam collected 20 more marbles. How many marbles did Sam collect in total?

  • 55
  • 45
  • 50
  • 60
Why:

To find the total number of marbles collected, add the marbles collected on Monday to the marbles collected on Tuesday. The calculation is 35 + 20, which equals 55.

Lily collected 56 stickers in total. She gave away 7 stickers to her friend. How many stickers does Lily have left?

  • 49
  • 50
  • 48
  • 51
Why:

To find out how many stickers Lily has left, subtract the number of stickers she gave away from the total she collected.

Tom had 82 marbles. He lost 5 marbles while playing. How many marbles does Tom have now?

  • 77
  • 76
  • 78
  • 80
Why:

To determine how many marbles Tom has now, subtract the number of marbles he lost from the total he initially had.

Anna had 65 apples. She sold 8 apples at the market. How many apples does Anna have left?

  • 57
  • 58
  • 59
  • 56
Why:

To find out how many apples Anna has left, subtract the number of apples she sold from the total she had.

Ben owned 74 toy cars. He gave away 6 of them to his cousin. How many toy cars does Ben have remaining?

  • 68
  • 70
  • 69
  • 71
Why:

To determine how many toy cars Ben has remaining, subtract the number of toy cars he gave away from the total he owned.

Mia had 91 crayons. She lost 4 crayons during a trip. How many crayons does Mia have now?

  • 86
  • 87
  • 88
  • 89
Why:

To find out how many crayons Mia has now, subtract the number of crayons she lost from the total she initially had.

Lily collected 78 marbles in the morning. In the afternoon, she collected 5 fewer marbles. How many marbles did Lily collect in the afternoon?

  • 73
  • 74
  • 75
  • 76
Why:

To find out how many marbles Lily collected in the afternoon, subtract the number of marbles she collected fewer from the total she collected in the morning. This results in the number of marbles collected in the afternoon being 73.

Anna had 75 balloons. The wind blew away 30 balloons. How many balloons are left?

  • 45
  • 50
  • 40
  • 55
Why:

To find out how many balloons are left, we take away the 30 that blew away from the 75 balloons Anna had. The calculation is 75 - 30, which gives us 45 balloons left.

Ben had 82 balloons. The wind blew away 40 balloons. How many balloons are left?

  • 42
  • 50
  • 45
  • 40
Why:

We start with 82 balloons and subtract the 40 that were blown away by the wind. The result of 82 - 40 is 42 balloons remaining.

Lily had 64 balloons. The wind blew away 20 balloons. How many balloons are left?

  • 44
  • 48
  • 40
  • 54
Why:

To determine how many balloons are left, we subtract the 20 that blew away from the original 64 balloons. Therefore, 64 - 20 = 44 balloons remaining.

Tom had 91 balloons. The wind blew away 50 balloons. How many balloons are left?

  • 41
  • 45
  • 40
  • 50
Why:

To find out how many balloons Tom has left, we subtract the 50 that blew away from the 91 he originally had. The result of 91 - 50 is 41 balloons remaining.

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