Addition Worksheet

Solve.

1 a. ______ + (–3) + 9 = –4
 
 
1 b. ______ + (–1) + 0 = 3
 
 
2 a. (–4) + (–3) + ______ = 1
 
 
2 b. 10 + ______ + (–4) = 0
 
 
3 a. ______ + 10 + (–6) = –6
 
 
3 b. ______ + 4 + 5 = 7
 
 
4 a. ______ + 0 + (–4) = –11
 
 
4 b. (–10) + ______ + (–4) = –21
 
 
5 a. ______ + (–7) + (–8) = –19
 
 
5 b. ______ + (–8) + 10 = –7
 
 
6 a. ______ + (–5) + 4 = –11
 
 
6 b. ______ + (–6) + (–5) = –3
 
 
7 a. ______ + 0 + (–9) = –12
 
 
7 b. 7 + ______ + (–3) = –5
 
 
8 a. 10 + 1 + ______ = 6
 
 
8 b. (–10) + ______ + (–5) = –25
 
 
9 a. ______ + (–3) + 3 = –6
 
 
9 b. ______ + (–1) + 1 = 7
 
 
10 a. (–8) + (–4) + ______ = –14
 
 
10 b. 0 + (–2) + ______ = –9
 
 
Page 2

Answer Key

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


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