Addition Worksheet

Solve.

1 a. 9 + ______ + 0 = 4
 
 
1 b. ______ + (–4) + (–3) = –7
 
 
2 a. 0 + ______ + (–4) = 5
 
 
2 b. (–9) + (–9) + ______ = –22
 
 
3 a. (–9) + (–6) + ______ = –12
 
 
3 b. 9 + ______ + (–1) = 13
 
 
4 a. (–7) + (–4) + ______ = –8
 
 
4 b. ______ + 3 + 10 = 4
 
 
5 a. ______ + (–6) + (–3) = 1
 
 
5 b. 6 + 6 + ______ = 9
 
 
6 a. (–5) + (–9) + ______ = –19
 
 
6 b. (–4) + (–6) + ______ = –12
 
 
7 a. (–1) + (–4) + ______ = –6
 
 
7 b. 8 + (–7) + ______ = –3
 
 
8 a. (–1) + ______ + (–10) = –8
 
 
8 b. (–10) + (–1) + ______ = –11
 
 
9 a. 3 + (–1) + ______ = 2
 
 
9 b. 1 + ______ + 10 = 10
 
 
10 a. 10 + (–8) + ______ = 4
 
 
10 b. 9 + (–5) + ______ = 10
 
 
Page 2

Answer Key

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

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