Question

Find the sum:
(a) 7 + (– 5) + 12
(b) 17 + (– 2) + (– 6)

Answer 1

Answer:

$+ \times + = - \\ - \times - = + \\ - \times + = + \\ + \times - = -$

$a = 7 + ( - 5) + 12 \\ = 7 - 5 + 12 \\ = 7 - 17 \\ = 10 = answer \: a$

$b = 17 + ( - 2) + ( - 6) \\ = 17 - 2 - 6 \\ = 15 - 6 \\ = 9 = answer \: b$

Step-by-step explanation:

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