Number Bond Addition Strategies
Name: _______________________________
Date: _______________________________
Instructions: Break apart the numbers using number bonds to make addition easier. Fill in the missing numbers and solve each problem.
Part A: Complete the Number Bonds
Break the second number to make it easier to add.
1.
27 + 8 = 27 + _____ + _____ = _____ + _____ = _____
2.
34 + 9 = 34 + _____ + _____ = _____ + _____ = _____
3.
45 + 7 = 45 + _____ + _____ = _____ + _____ = _____
4.
56 + 8 = 56 + _____ + _____ = _____ + _____ = _____
Part B: Break into Tens and Ones
Split one number into tens and ones, then add.
5.
23 + 14 = 23 + _____ + _____ = _____ + _____ = _____
6.
35 + 22 = 35 + _____ + _____ = _____ + _____ = _____
7.
41 + 26 = 41 + _____ + _____ = _____ + _____ = _____
Part C: Use Number Bonds to Solve
Show your working using number bonds.
8. 28 + 6 = _____
Working: ___________________________
9. 47 + 9 = _____
Working: ___________________________
10. 52 + 18 = _____
Working: ___________________________
11. 36 + 25 = _____
Working: ___________________________
12. 64 + 7 = _____
Working: ___________________________
13. 58 + 14 = _____
Working: ___________________________
Challenge! 🌟
Use number bonds to solve these tricky problems:
14. 73 + 19 = _____ Working: _________________________________________
15. 85 + 27 = _____ Working: _________________________________________