Addition Worksheet

Solve.

1 a. ______ + (–9) + 8 = 2
 
 
1 b. 10 + (–2) + ______ = 12
 
 
2 a. (–1) + ______ + 3 = –2
 
 
2 b. (–5) + ______ + 9 = 2
 
 
3 a. ______ + (–2) + (–6) = –16
 
 
3 b. ______ + (–9) + (–8) = –14
 
 
4 a. ______ + (–7) + 4 = –3
 
 
4 b. (–8) + (–3) + ______ = –5
 
 
5 a. 0 + ______ + (–6) = 3
 
 
5 b. ______ + (–4) + (–5) = –2
 
 
6 a. ______ + (–3) + 1 = –4
 
 
6 b. ______ + 1 + 2 = –7
 
 
7 a. ______ + (–2) + 4 = –7
 
 
7 b. (–8) + ______ + (–6) = –23
 
 
8 a. (–10) + (–10) + ______ = –16
 
 
8 b. 6 + ______ + (–9) = –5
 
 
9 a. (–10) + (–2) + ______ = –5
 
 
9 b. 2 + ______ + (–6) = 0
 
 
10 a. ______ + (–7) + 10 = 12
 
 
10 b. 6 + 7 + ______ = 7
 
 
Page 2

Answer Key

1 a. 3    
1 b. 4    
2 a. (–4)    
2 b. (–2)    
3 a. (–8)    
3 b. 3    
4 a. 0    
4 b. 6    
5 a. 9    
5 b. 7    
6 a. (–2)    
6 b. (–10)    
7 a. (–9)    
7 b. (–9)    
8 a. 4    
8 b. (–2)    
9 a. 7    
9 b. 4    
10 a. 9    
10 b. (–6)    

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