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Addition: Adding 2-Digits by 1-Digit Numbers - Printable Mathematics Worksheets - Wayground

Addition: Adding 2-Digits by 1-Digit Numbers

10 questions

3rd - 3rd Grade

Mathematics

This Grade 3 mathematics worksheet gives students focused practice adding a two-digit number and a one-digit number. It contains 10 multiple-choice equations, including problems such as 13 + 8, 77 + 7, and 88 + 8. Several items require students to recognize when the ones digits combine to make a new ten, while others reinforce accurate addition within the same ten. Use this free printable worksheet for independent practice, a short skills check, math-center work, or review after modeling two-digit plus one-digit addition. Students must calculate each sum and identify the correct answer from four choices, making the format useful for checking both computation accuracy and careful reading. A complete answer key is included so teachers can review responses efficiently and address errors in place-value or addition reasoning.

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Worksheets

Addition: Adding 2-Digits by 1-Digit Numbers

Total questions: 10

Name
Class
Date
1.

13 + 8 = ?

a)

16

b)

19

c)

21

d)

56

2.

77 + 7 = ?

a)

77

b)

78

c)

84

d)

92

3.

78 + 9 = ?

a)

69

b)

75

c)

87

d)

88

4.

88 + 8 = ?

a)

62

b)

85

c)

86

d)

96

5.

76 + 4 = ?

a)

72

b)

80

c)

76

d)

96

6.

58 + 3 = ?

a)

38

b)

59

c)

55

d)

61

7.

37 + 5 = ?

a)

13

b)

50

c)

42

d)

65

8.

25 + 6 = ?

a)

18

b)

26

c)

31

d)

39

9.

67 + 2 = ?

a)

64

b)

66

c)

69

d)

82

10.

12 + 1 = ?

a)

13

b)

28

c)

21

d)

33

Answer Key

Addition: Adding 2-Digits by 1-Digit Numbers

Total questions: 10

1.
c)

21

2.
c)

84

3.
c)

87

4.
d)

96

5.
b)

80

6.
d)

61

7.
c)

42

8.
c)

31

9.
c)

69

10.
a)

13

FAQs

What does this worksheet cover?

This Grade 3 worksheet covers adding a two-digit number and a one-digit number through 10 multiple-choice equations. Students calculate sums such as 13 + 8 and 77 + 7, including examples in which the ones digits create a new ten, and then select the correct answer.

How can I use this worksheet to teach adding two-digit and one-digit numbers?

Model how to add the one-digit number to the ones place, then discuss what happens when the ones total reaches or passes 10. Work through one or two equations from this worksheet together, asking students to explain why the correct choice is accurate, before assigning the remaining multiple-choice items for independent practice.

What mistakes should I watch for on this addition worksheet?

Watch for students adding the one-digit number to the tens digit instead of the ones digit, or changing the tens incorrectly when the ones sum reaches 10. On the multiple-choice items, students may also choose a nearby distractor after making a counting error, so ask them to recompute the sum and check its place value.

How do I assign and grade this worksheet?

This worksheet is available as a printable PDF and as a digital quiz on Wayground, and it includes a complete answer key for all 10 multiple-choice questions. Printable submissions can be graded by scanning student work with the **Wayground for Teachers** app. The PDF option can also support schools that are reducing screen time.

How can I differentiate this worksheet for my students?

In the worksheet’s Advanced Settings, adjust font spacing or choose a larger font size to make the 10 addition equations and answer choices easier to read. You can also apply a dyslexia-friendly font or translate the worksheet into another language while keeping the same two-digit-plus-one-digit multiple-choice practice.

Where can I find more worksheets like this on Wayground?

Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to help students build essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.