Addition Worksheet

Solve.

1 a. (–3) + ______ + (–2) = –6
1 b. (–8) + (–10) + ______ = –23
2 a. 1 + ______ + 10 = 7
2 b. 8 + (–3) + ______ = 10
3 a. ______ + (–8) + 6 = 0
3 b. ______ + (–7) + 4 = –5
4 a. 7 + 0 + ______ = 3
4 b. (–8) + (–9) + ______ = –25
5 a. (–3) + ______ + (–5) = 1
5 b. ______ + (–3) + 8 = 2
6 a. (–10) + (–1) + ______ = –13
6 b. (–6) + (–6) + ______ = –9
7 a. (–4) + (–8) + ______ = –7
7 b. 9 + (–2) + ______ = 5
8 a. (–1) + ______ + (–5) = –13
8 b. ______ + (–7) + 0 = –8
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Answer Key

1 a. (–1)    
1 b. (–5)    
2 a. (–4)    
2 b. 5    
3 a. 2    
3 b. (–2)    
4 a. (–4)    
4 b. (–8)    
5 a. 9    
5 b. (–3)    
6 a. (–2)    
6 b. 3    
7 a. 5    
7 b. (–2)    
8 a. (–7)    
8 b. (–1)    


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