Addition Worksheet

Solve.

1 a. 20 + 39 + ______ = 133
 
1 b. 64 =7 + 21 + ______
 
2 a. 110 =35 + 34 + _________
 
2 b. 13 + ______ + 7 = 50
 
3 a. 120 =28 + 55 + ______
 
3 b. 166 =_________ + 14 + 95
 
4 a. 8 + ______ + 42 = 74
 
4 b. 30 + ______ + 85 = 121
 
5 a. 130 =47 + _________ + 36
 
5 b. 35 + ______ + 23 = 136
 
6 a. ______ + 33 + 73 = 159
 
6 b. 176 =_________ + 54 + 44
 
7 a. 159 =40 + _________ + 87
 
7 b. 30 + 49 + _________ = 152
 
8 a. 31 + ______ + 67 = 117
 
8 b. 100 =______ + 31 + 4
 
9 a. 157 =50 + 57 + _________
 
9 b. 42 =______ + 16 + 9
 
10 a. 148 =71 + 32 + _________
 
10 b. 29 + ______ + 34 = 139
 
11 a. 125 =22 + ______ + 74
 
11 b. 75 + ______ + 8 = 135
 
12 a. 84 =6 + 16 + ______
 
12 b. 15 + 19 + ______ = 49
 
Page 2

Answer Key

1 a. 74    
1 b. 36    
2 a. 41    
2 b. 30    
3 a. 37    
3 b. 57    
4 a. 24    
4 b. 6    
5 a. 47    
5 b. 78    
6 a. 53    
6 b. 78    
7 a. 32    
7 b. 73    
8 a. 19    
8 b. 65    
9 a. 50    
9 b. 17    
10 a. 45    
10 b. 76    
11 a. 29    
11 b. 52    
12 a. 62    
12 b. 15    


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