Addition Worksheet

Solve.

1 a. (–4) + ______ + (–3) = –17
1 b. 9 + ______ + (–10) = –3
2 a. ______ + (–8) + (–5) = –14
2 b. 4 + ______ + 5 = –1
3 a. ______ + (–6) + (–10) = –24
3 b. ______ + (–9) + 1 = –9
4 a. 3 + (–8) + ______ = –14
4 b. (–5) + 1 + ______ = –2
5 a. (–6) + ______ + (–5) = –10
5 b. (–7) + 2 + ______ = –13
6 a. 10 + (–3) + ______ = 10
6 b. ______ + (–9) + 2 = 2
7 a. (–4) + ______ + 5 = 5
7 b. (–7) + ______ + (–2) = –7
8 a. (–7) + ______ + 7 = –9
8 b. 3 + ______ + (–9) = –8
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Answer Key

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


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