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An Addition Worksheet - by HelpingWithMath.com

Addition: Number Bonds to 40



Write the missing numbers that add up to 40. The first one is done for you.

13 + 27 = 40

6 + 34 = 40

18 + 22 = 40

5 + 35 = 40

24 + 16 = 40

19 + 21 = 40

15 + 25 = 40

14 + 26 = 40

39 + 1 = 40

27 + 13 = 40

26 + 14 = 40

12 + 28 = 40
25 + 15 = 40 24 + 16 = 40 33 + 7 = 40

31 + 9 = 40

 18 + 22 = 40 18 + 22 = 40
22 + 18 = 40 2 + 38 = 40 19 + 21 = 40
20 + 20 = 40

15 + 25 = 40

10 + 30 = 40

14 + 26 = 40

 11 + 29 = 40 37 + 3 = 40
10 + 30 = 40

18 + 22 = 40

1 + 39 = 40

21 + 19 = 40

 7 + 33 = 40 38 + 2 = 40
15 + 25 = 40 24 + 16 = 40 13 + 27 = 40
22 + 18 = 40 13 + 27 = 40 29 + 11 = 40

17 + 23 = 40

28 + 12 = 40

2 + 38 = 40
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