Addition Worksheet

Solve.

1 a. (–1) + (–1) + ______ = –9
 
 
1 b. (–5) + ______ + (–4) = –18
 
 
2 a. 10 + (–7) + ______ = 2
 
 
2 b. ______ + (–9) + 3 = 2
 
 
3 a. (–7) + (–8) + ______ = –16
 
 
3 b. ______ + (–3) + (–7) = –14
 
 
4 a. 9 + ______ + (–9) = –9
 
 
4 b. 0 + ______ + (–9) = –17
 
 
5 a. ______ + 2 + (–4) = –5
 
 
5 b. (–2) + ______ + 8 = 3
 
 
6 a. (–5) + (–1) + ______ = –10
 
 
6 b. ______ + (–2) + (–10) = –22
 
 
7 a. 7 + (–6) + ______ = 0
 
 
7 b. 8 + 5 + ______ = 6
 
 
8 a. ______ + (–5) + 0 = –14
 
 
8 b. ______ + (–6) + 8 = 0
 
 
9 a. 3 + (–5) + ______ = –8
 
 
9 b. ______ + (–7) + (–8) = –16
 
 
10 a. ______ + (–1) + 4 = 5
 
 
10 b. ______ + 6 + 9 = 14
 
 
Page 2

Answer Key

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


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