🎓 Velnov

➗ Mathematics · Topic 2 of 10

Addition — Mathematics Questions with Answers

60 practice questions on Addition, each with the correct answer and a clear explanation of why it is right. Read through them as revision notes, or take this topic as an interactive quiz to test yourself.

9 easy · 28 medium · 23 hard · Part of Mathematics: Maths problems for Class 1-5 - 10 topics.

Key concepts in this topic

AdditionSingle digitDoublesAdding zeroAdding oneMake ten2-digit + 1-digit2-digitTensCarryingHundreds3-digitWord problemNumber bondsMissing addendOrder propertyThree numbersNo carryMake hundredZeroSummary

Jump to: Easy · Medium · Hard

Easy questions (9)

Q1. easy

What is 2 + 3?

  1. A 5
  2. B 6
  3. C 4
  4. D 23

Answer: A — 5

2 + 3 means 2 and 3 together, which makes 5.

AdditionSingle digit

Q2. easy

What is 4 + 4?

  1. A 8
  2. B 6
  3. C 44
  4. D 7

Answer: A — 8

4 + 4 = 8. Adding a number to itself is called a double.

AdditionDoubles

Q3. easy

What is 5 + 0?

  1. A 5
  2. B 0
  3. C 50
  4. D 10

Answer: A — 5

Adding 0 to any number does not change it, so 5 + 0 = 5.

AdditionAdding zero

Q4. easy

What is 6 + 1?

  1. A 7
  2. B 5
  3. C 61
  4. D 8

Answer: A — 7

6 + 1 = 7. Adding 1 gives the next number.

AdditionAdding one

Q5. easy

What is 7 + 3?

  1. A 10
  2. B 9
  3. C 11
  4. D 4

Answer: A — 10

7 + 3 = 10. Two numbers that make 10 are called a number bond of 10.

AdditionMake ten

Q16. easy

Ravi has 3 apples. His friend gives him 2 more. How many apples does he have now?

  1. A 5
  2. B 1
  3. C 6
  4. D 4

Answer: A — 5

Getting more means adding: 3 + 2 = 5 apples.

Word problemAddition

Q34. easy

What is 1 + 1 + 1?

  1. A 3
  2. B 2
  3. C 111
  4. D 4

Answer: A — 3

1 + 1 + 1 = 3.

AdditionThree numbers

Q40. easy

There are 5 birds on a tree. 3 more birds come. How many birds now?

  1. A 8
  2. B 2
  3. C 9
  4. D 7

Answer: A — 8

More birds means add: 5 + 3 = 8 birds.

Word problemAddition

Q47. easy

What is 0 + 0?

  1. A 0
  2. B 1
  3. C 2
  4. D 00

Answer: A — 0

Adding nothing to nothing gives nothing: 0 + 0 = 0.

AdditionZero

Medium questions (28)

Q6. medium

What is 12 + 5?

  1. A 17
  2. B 16
  3. C 7
  4. D 125

Answer: A — 17

12 + 5 = 17. Add the ones: 2 + 5 = 7, keep the ten: 17.

Addition2-digit + 1-digit

Q7. medium

What is 23 + 14?

  1. A 37
  2. B 36
  3. C 47
  4. D 27

Answer: A — 37

Add ones: 3 + 4 = 7. Add tens: 2 + 1 = 3. So 23 + 14 = 37.

Addition2-digit

Q8. medium

What is 30 + 40?

  1. A 70
  2. B 60
  3. C 34
  4. D 700

Answer: A — 70

3 tens + 4 tens = 7 tens = 70. So 30 + 40 = 70.

AdditionTens

Q9. medium

What is 25 + 25?

  1. A 50
  2. B 40
  3. C 55
  4. D 45

Answer: A — 50

25 + 25 = 50. Add ones: 5 + 5 = 10 (write 0, carry 1). Add tens: 2 + 2 + 1 = 5. So 50.

AdditionCarrying

Q10. medium

What is 18 + 6?

  1. A 24
  2. B 23
  3. C 14
  4. D 26

Answer: A — 24

18 + 6 = 24. Add ones: 8 + 6 = 14 (write 4, carry 1). Add tens: 1 + 1 = 2. So 24.

AdditionCarrying

Q13. medium

What is 100 + 50?

  1. A 150
  2. B 105
  3. C 500
  4. D 60

Answer: A — 150

100 + 50 = 150 (1 hundred, 5 tens, 0 ones).

AdditionHundreds

Q17. medium

There are 12 red balloons and 8 blue balloons. How many balloons in all?

  1. A 20
  2. B 18
  3. C 22
  4. D 4

Answer: A — 20

'In all' means we add: 12 + 8 = 20 balloons.

Word problemAddition

Q18. medium

Sita read 15 pages in the morning and 10 pages at night. How many pages did she read?

  1. A 25
  2. B 5
  3. C 20
  4. D 35

Answer: A — 25

Total pages = 15 + 10 = 25 pages.

Word problemAddition

Q21. medium

Which two numbers add up to 10?

  1. A 6 and 4
  2. B 6 and 5
  3. C 7 and 4
  4. D 8 and 3

Answer: A — 6 and 4

6 + 4 = 10. These are called a number bond of 10.

Number bondsMake ten

Q22. medium

Fill in the blank: 8 + ___ = 15

  1. A 7
  2. B 6
  3. C 8
  4. D 5

Answer: A — 7

We need a number that makes 15 with 8. Since 15 - 8 = 7, the answer is 7.

Missing addend

Q24. medium

What is 9 + 9?

  1. A 18
  2. B 16
  3. C 99
  4. D 19

Answer: A — 18

9 + 9 = 18. This is the double of 9.

AdditionDoubles

Q25. medium

Does the answer change if we add in a different order? 5 + 3 and 3 + 5

  1. A No, both equal 8
  2. B Yes, 5 + 3 is bigger
  3. C Yes, 3 + 5 is bigger
  4. D There is no answer

Answer: A — No, both equal 8

In addition, the order does not change the answer: 5 + 3 = 8 and 3 + 5 = 8. This is the order (commutative) property.

AdditionOrder property

Q28. medium

What is 43 + 6?

  1. A 49
  2. B 48
  3. C 39
  4. D 37

Answer: A — 49

Add ones: 3 + 6 = 9. Keep the tens: 4. So 43 + 6 = 49.

AdditionNo carry

Q30. medium

A hen laid 4 eggs on Monday and 5 eggs on Tuesday. How many eggs in total?

  1. A 9
  2. B 1
  3. C 10
  4. D 8

Answer: A — 9

Total eggs = 4 + 5 = 9.

Word problemAddition

Q32. medium

What is 60 + 25?

  1. A 85
  2. B 75
  3. C 35
  4. D 65

Answer: A — 85

60 + 25 = 85. Add tens: 6 + 2 = 8; add ones: 0 + 5 = 5. So 85.

Addition2-digit

Q35. medium

Fill in the blank: ___ + 10 = 25

  1. A 15
  2. B 5
  3. C 35
  4. D 10

Answer: A — 15

25 - 10 = 15, so 15 + 10 = 25.

Missing addend

Q37. medium

A boy scored 8 runs, then 6 more runs, then 4 more. How many runs in all?

  1. A 18
  2. B 14
  3. C 20
  4. D 16

Answer: A — 18

Total runs = 8 + 6 + 4 = 18.

Word problemThree numbers

Q38. medium

What is 50 + 50?

  1. A 100
  2. B 10
  3. C 550
  4. D 500

Answer: A — 100

50 + 50 = 100.

AdditionMake hundred

Q41. medium

What is 14 + 14?

  1. A 28
  2. B 24
  3. C 18
  4. D 144

Answer: A — 28

14 + 14 = 28 (the double of 14).

AdditionDoubles

Q43. medium

What is 21 + 21 + 21?

  1. A 63
  2. B 42
  3. C 60
  4. D 66

Answer: A — 63

21 + 21 = 42, then 42 + 21 = 63.

AdditionThree numbers

Q45. medium

What is 40 + 35?

  1. A 75
  2. B 65
  3. C 45
  4. D 85

Answer: A — 75

40 + 35 = 75. Add tens: 4 + 3 = 7; add ones: 0 + 5 = 5. So 75.

Addition2-digit

Q48. medium

What is 33 + 33?

  1. A 66
  2. B 63
  3. C 36
  4. D 60

Answer: A — 66

33 + 33 = 66 (the double of 33).

AdditionDoubles

Q50. medium

A box has 16 red pens and 24 blue pens. How many pens are in the box?

  1. A 40
  2. B 30
  3. C 8
  4. D 42

Answer: A — 40

Total pens = 16 + 24 = 40.

Word problem2-digit

Q52. medium

Fill in the blank: 7 + ___ = 12

  1. A 5
  2. B 4
  3. C 6
  4. D 19

Answer: A — 5

12 - 7 = 5, so 7 + 5 = 12.

Missing addend

Q54. medium

What is 65 + 5?

  1. A 70
  2. B 60
  3. C 75
  4. D 610

Answer: A — 70

Ones: 5 + 5 = 10 (write 0, carry 1). Tens: 6 + 1 = 7. So 65 + 5 = 70.

AdditionCarrying

Q56. medium

What is 90 + 10?

  1. A 100
  2. B 80
  3. C 910
  4. D 99

Answer: A — 100

90 + 10 = 100.

AdditionMake hundred

Q58. medium

In a library, 32 books are on one shelf and 28 on another. How many books in all?

  1. A 60
  2. B 50
  3. C 4
  4. D 62

Answer: A — 60

Total books = 32 + 28 = 60.

Word problem2-digit

Q60. medium

What is 22 + 8?

  1. A 30
  2. B 20
  3. C 28
  4. D 310

Answer: A — 30

Ones: 2 + 8 = 10 (write 0, carry 1). Tens: 2 + 1 = 3. So 22 + 8 = 30.

AdditionCarrying

Hard questions (23)

Q11. hard

What is 47 + 38?

  1. A 85
  2. B 75
  3. C 84
  4. D 815

Answer: A — 85

Add ones: 7 + 8 = 15 (write 5, carry 1). Add tens: 4 + 3 + 1 = 8. So 47 + 38 = 85.

AdditionCarrying

Q12. hard

What is 56 + 27?

  1. A 83
  2. B 73
  3. C 82
  4. D 813

Answer: A — 83

Add ones: 6 + 7 = 13 (write 3, carry 1). Add tens: 5 + 2 + 1 = 8. So 56 + 27 = 83.

AdditionCarrying

Q14. hard

What is 234 + 152?

  1. A 386
  2. B 376
  3. C 486
  4. D 396

Answer: A — 386

Ones: 4 + 2 = 6. Tens: 3 + 5 = 8. Hundreds: 2 + 1 = 3. So 234 + 152 = 386.

Addition3-digit

Q15. hard

What is 168 + 125?

  1. A 293
  2. B 283
  3. C 393
  4. D 2813

Answer: A — 293

Ones: 8 + 5 = 13 (write 3, carry 1). Tens: 6 + 2 + 1 = 9. Hundreds: 1 + 1 = 2. So 293.

AdditionCarrying

Q19. hard

A shop sold 45 pens on Monday and 38 pens on Tuesday. How many pens were sold in two days?

  1. A 83
  2. B 73
  3. C 7
  4. D 85

Answer: A — 83

Total = 45 + 38 = 83 pens.

Word problemCarrying

Q20. hard

A basket has 125 mangoes. 75 more are added. How many mangoes are there now?

  1. A 200
  2. B 190
  3. C 150
  4. D 100

Answer: A — 200

Total = 125 + 75 = 200 mangoes.

Word problem3-digit

Q23. hard

Fill in the blank: 24 + ___ = 30

  1. A 6
  2. B 4
  3. C 16
  4. D 5

Answer: A — 6

30 - 24 = 6, so 24 + 6 = 30.

Missing addend

Q26. hard

What is 7 + 8 + 5?

  1. A 20
  2. B 19
  3. C 21
  4. D 15

Answer: A — 20

Add step by step: 7 + 8 = 15, then 15 + 5 = 20.

AdditionThree numbers

Q27. hard

What is 10 + 20 + 30?

  1. A 60
  2. B 50
  3. C 70
  4. D 600

Answer: A — 60

10 + 20 = 30, then 30 + 30 = 60.

AdditionThree numbers

Q29. hard

What is 99 + 1?

  1. A 100
  2. B 90
  3. C 101
  4. D 98

Answer: A — 100

99 + 1 = 100. The ones become 10 (carry 1), and the tens become 10, making 100.

AdditionCarrying

Q31. hard

There are 250 boys and 230 girls in a school. How many students are there?

  1. A 480
  2. B 470
  3. C 20
  4. D 580

Answer: A — 480

Total students = 250 + 230 = 480.

Word problem3-digit

Q33. hard

What is 145 + 155?

  1. A 300
  2. B 290
  3. C 200
  4. D 310

Answer: A — 300

Ones: 5 + 5 = 10 (write 0, carry 1). Tens: 4 + 5 + 1 = 10 (write 0, carry 1). Hundreds: 1 + 1 + 1 = 3. So 300.

AdditionCarrying

Q36. hard

What is 306 + 194?

  1. A 500
  2. B 490
  3. C 400
  4. D 510

Answer: A — 500

Ones: 6 + 4 = 10 (write 0, carry 1). Tens: 0 + 9 + 1 = 10 (write 0, carry 1). Hundreds: 3 + 1 + 1 = 5. So 500.

AdditionCarrying

Q39. hard

What is 77 + 23?

  1. A 100
  2. B 90
  3. C 99
  4. D 910

Answer: A — 100

Ones: 7 + 3 = 10 (write 0, carry 1). Tens: 7 + 2 + 1 = 10. So 77 + 23 = 100.

AdditionCarrying

Q42. hard

Fill in the blank: 35 + ___ = 100

  1. A 65
  2. B 75
  3. C 55
  4. D 35

Answer: A — 65

100 - 35 = 65, so 35 + 65 = 100.

Missing addendMake hundred

Q44. hard

A farmer has 120 cows, 80 goats and 100 sheep. How many animals in all?

  1. A 300
  2. B 200
  3. C 280
  4. D 310

Answer: A — 300

Total = 120 + 80 + 100 = 300 animals.

Word problemThree numbers

Q46. hard

What is 88 + 88?

  1. A 176
  2. B 166
  3. C 168
  4. D 888

Answer: A — 176

Ones: 8 + 8 = 16 (write 6, carry 1). Tens: 8 + 8 + 1 = 17. So 88 + 88 = 176.

AdditionDoublesCarrying

Q49. hard

What is 199 + 1?

  1. A 200
  2. B 190
  3. C 201
  4. D 100

Answer: A — 200

199 + 1 = 200 (the ones and tens roll over to make a new hundred).

AdditionCarrying

Q51. hard

What is 250 + 250?

  1. A 500
  2. B 400
  3. C 550
  4. D 450

Answer: A — 500

250 + 250 = 500 (the double of 250).

Addition3-digitDoubles

Q53. hard

What is 123 + 321?

  1. A 444
  2. B 434
  3. C 544
  4. D 424

Answer: A — 444

Ones: 3 + 1 = 4. Tens: 2 + 2 = 4. Hundreds: 1 + 3 = 4. So 123 + 321 = 444.

Addition3-digit

Q55. hard

Ravi had 45 marbles. He won 15 more and then 25 more. How many marbles does he have now?

  1. A 85
  2. B 75
  3. C 60
  4. D 95

Answer: A — 85

Total = 45 + 15 + 25 = 85 marbles.

Word problemThree numbers

Q57. hard

What is 275 + 125?

  1. A 400
  2. B 390
  3. C 300
  4. D 410

Answer: A — 400

Ones: 5 + 5 = 10 (write 0, carry 1). Tens: 7 + 2 + 1 = 10 (write 0, carry 1). Hundreds: 2 + 1 + 1 = 4. So 400.

AdditionCarrying

Q59. hard

Which overall statement about addition is CORRECT?

  1. A Addition means putting numbers together to find the total; we add ones first, then tens, carrying when a column makes 10 or more
  2. B Addition always makes a smaller number
  3. C The order of numbers changes the total
  4. D We never carry in addition

Answer: A — Addition means putting numbers together to find the total; we add ones first, then tens, carrying when a column makes 10 or more

This sums up the topic: addition combines numbers into a total; we line up ones, tens and hundreds and carry when a column reaches 10; and the order of the numbers does not change the answer.

AdditionSummary

Practice “Addition” as a quiz