Addition Worksheet

Solve.

1 a. (–12) + (–8) + (–4) = ______
1 b. 10 + 6 + (–9) = ______
2 a. 20 + 9 + 6 = ______
2 b. (–13) + (–4) + (–7) = ______
3 a. 11 + 9 + (–3) = ______
3 b. (–18) + 10 + (–6) = ______
4 a. (–16) + 6 + (–3) = ______
4 b. (–13) + 3 + 10 = ______
5 a. 20 + 0 + (–7) = ______
5 b. 6 + 1 + 8 = ______
6 a. 12 + 6 + 8 = ______
6 b. 3 + 4 + 8 = ______
7 a. 4 + 10 + (–7) = ______
7 b. (–11) + 5 + 0 = ______
8 a. 7 + 0 + 3 = ______
8 b. (–17) + (–3) + 10 = ______
9 a. 12 + (–1) + 10 = ______
9 b. (–7) + 10 + 7 = ______
10 a. 18 + 1 + 9 = ______
10 b. 19 + 8 + (–7) = ______
Page 2

Answer Key

1 a. –24    
1 b. 7    
2 a. 35    
2 b. –24    
3 a. 17    
3 b. –14    
4 a. –13    
4 b. 0    
5 a. 13    
5 b. 15    
6 a. 26    
6 b. 15    
7 a. 7    
7 b. –6    
8 a. 10    
8 b. –10    
9 a. 21    
9 b. 10    
10 a. 28    
10 b. 20    


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