Addition Worksheet

Solve.

1 a. (–5) + (–7) + ______ = –16
 
 
1 b. 6 + (–3) + ______ = 10
 
 
2 a. ______ + (–4) + (–4) = –1
 
 
2 b. (–8) + (–5) + ______ = –18
 
 
3 a. ______ + (–5) + (–10) = –9
 
 
3 b. 0 + ______ + (–2) = –9
 
 
4 a. 2 + ______ + 4 = –2
 
 
4 b. ______ + 10 + (–8) = –6
 
 
5 a. ______ + (–2) + (–7) = –17
 
 
5 b. 6 + (–5) + ______ = 3
 
 
6 a. ______ + 6 + (–9) = –4
 
 
6 b. ______ + (–8) + (–3) = –12
 
 
7 a. ______ + (–2) + (–4) = –10
 
 
7 b. (–10) + ______ + (–8) = –26
 
 
8 a. ______ + (–5) + 4 = –6
 
 
8 b. (–4) + (–4) + ______ = –15
 
 
9 a. 1 + ______ + (–7) = –15
 
 
9 b. (–2) + ______ + (–7) = –1
 
 
10 a. (–7) + (–6) + ______ = –4
 
 
10 b. (–9) + (–1) + ______ = –9
 
 
Page 2

Answer Key

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

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