Addition Worksheet

Solve.

1 a. (–10) + ______ + 4 = –4
1 b. ______ + (–10) + 0 = –3
2 a. (–3) + ______ + 10 = –1
2 b. 5 + (–10) + ______ = –7
3 a. (–7) + 6 + ______ = 3
3 b. (–8) + (–9) + ______ = –23
4 a. 8 + ______ + (–1) = –1
4 b. (–8) + (–8) + ______ = –20
5 a. 7 + ______ + (–2) = 0
5 b. (–3) + ______ + (–6) = –10
6 a. (–7) + (–5) + ______ = –15
6 b. ______ + (–4) + 2 = –7
7 a. (–2) + 8 + ______ = 4
7 b. (–7) + ______ + (–1) = –12
8 a. (–10) + ______ + (–5) = –18
8 b. ______ + 3 + (–6) = 3
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Answer Key

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


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