Addition Worksheet

Solve.

1 a. (–9) + ___ = –12
1 b. 5 + ___ = 2
2 a. 7 + ___ = 3
2 b. (–9) + ___ = –11
3 a. ___ + (–7) = –3
3 b. (–7) + ___ = –17
4 a. (–2) + ___ = 1
4 b. (–3) + ___ = 3
5 a. (–7) + ___ = –7
5 b. ___ + (–10) = –20
6 a. ___ + (–10) = –12
6 b. ___ + (–8) = 0
7 a. (–1) + ___ = –9
7 b. ___ + (–1) = –11
8 a. ___ + (–5) = –4
8 b. ___ + (–9) = –16
9 a. (–2) + ___ = –9
9 b. ___ + (–4) = 0
10 a. (–5) + ___ = –11
10 b. ___ + 3 = –1
Page 2

Answer Key

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


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