Answer:
a and d
Explanation:
A and D
A. - 10 + 8 = -2
B. 10 + -8 = 10 -8 = 2
C. -10 + - 8 = -10 - 8 = -18
D. 8 + - 10 = 8 - 10 = -2
E. 10 + 8 = 18
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