Addition Worksheet

Solve.

1 a. ______ + 5 + 8 = 9
 
 
1 b. 3 + ______ + 2 = 0
 
 
2 a. ______ + 5 + (–3) = 2
 
 
2 b. ______ + (–8) + (–2) = –11
 
 
3 a. (–3) + 8 + ______ = –1
 
 
3 b. (–1) + (–3) + ______ = –14
 
 
4 a. ______ + (–6) + 1 = –15
 
 
4 b. 4 + ______ + 2 = 0
 
 
5 a. 4 + ______ + 5 = 6
 
 
5 b. ______ + (–4) + 10 = 1
 
 
6 a. 1 + ______ + (–8) = –15
 
 
6 b. 0 + (–6) + ______ = 3
 
 
7 a. 4 + ______ + (–5) = –9
 
 
7 b. ______ + (–6) + 8 = 10
 
 
8 a. 2 + ______ + 9 = 8
 
 
8 b. 0 + ______ + (–2) = –5
 
 
9 a. (–10) + ______ + 8 = –4
 
 
9 b. 10 + (–10) + ______ = –5
 
 
10 a. 4 + ______ + (–7) = –1
 
 
10 b. ______ + (–10) + 1 = –18
 
 
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Answer Key

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

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