Addition Worksheet

Solve.

1 a. 40 + 8 + ______ + 60 = 112
1 b. 40 + ______ + 5 + 10 = 61
2 a. ______ + 20 + 6 + 4 = 40
2 b. 30 + 20 + 7 + ______ = 59
3 a. 10 + ______ + 8 + 6 = 54
3 b. ______ + 10 + 4 + 7 = 51
4 a. 9 + 9 + 20 + ______ = 58
4 b. 4 + 6 + ______ + 20 = 70
5 a. 10 + ______ + 8 + 2 = 90
5 b. 20 + 10 + ______ + 6 = 38
6 a. 6 + ______ + 5 + 10 = 91
6 b. ______ + 30 + 8 + 2 = 70
7 a. 50 + 6 + 9 + ______ = 105
7 b. 7 + ______ + 60 + 10 = 81
Page 2

Answer Key

1 a. 4    
1 b. 6    
2 a. 10    
2 b. 2    
3 a. 30    
3 b. 30    
4 a. 20    
4 b. 40    
5 a. 70    
5 b. 2    
6 a. 70    
6 b. 30    
7 a. 40    
7 b. 4    


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