Addition Worksheet

Solve.

1 a. (–5) + (–9) + ______ = –8
1 b. ______ + (–4) + 5 = 6
2 a. (–1) + (–10) + ______ = –16
2 b. 2 + ______ + 9 = 2
3 a. 10 + (–9) + ______ = –1
3 b. ______ + (–8) + 1 = –15
4 a. 0 + (–5) + ______ = –12
4 b. ______ + 6 + (–8) = 6
5 a. 1 + (–4) + ______ = –1
5 b. 0 + (–6) + ______ = 2
6 a. ______ + (–3) + 4 = 10
6 b. (–8) + (–5) + ______ = –4
7 a. (–8) + ______ + (–9) = –11
7 b. ______ + (–8) + (–1) = –19
8 a. ______ + 2 + (–1) = 7
8 b. 7 + ______ + 5 = 6
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Answer Key

1 a. 6    
1 b. 5    
2 a. (–5)    
2 b. (–9)    
3 a. (–2)    
3 b. (–8)    
4 a. (–7)    
4 b. 8    
5 a. 2    
5 b. 8    
6 a. 9    
6 b. 9    
7 a. 6    
7 b. (–10)    
8 a. 6    
8 b. (–6)    


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