Addition Worksheet

Solve.

1 a. 8 + ______ + 1 = 8
1 b. 3 + ______ + 9 = 4
2 a. 1 + ______ + 8 = 6
2 b. ______ + (–2) + 7 = 7
3 a. (–9) + (–8) + ______ = –13
3 b. (–2) + ______ + 5 = –2
4 a. ______ + 4 + (–2) = 10
4 b. 4 + (–6) + ______ = –1
5 a. ______ + (–1) + 4 = 5
5 b. (–7) + ______ + 2 = –5
6 a. ______ + (–2) + (–7) = –11
6 b. ______ + (–5) + (–1) = –16
7 a. 0 + ___ + (–4) = –2
7 b. 3 + ______ + 4 = –3
8 a. ______ + 7 + (–3) = 1
8 b. 5 + ______ + 0 = 3
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Answer Key

1 a. (–1)    
1 b. (–8)    
2 a. (–3)    
2 b. 2    
3 a. 4    
3 b. (–5)    
4 a. 8    
4 b. 1    
5 a. 2    
5 b. 0    
6 a. (–2)    
6 b. (–10)    
7 a. 2    
7 b. (–10)    
8 a. (–3)    
8 b. (–2)    


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