Mathematical Reasoning第 54 / 120 题
What is the value of the expression -4 + 9 − 3?
a.-10
b.2
c.10
d.8
解析
Working left to right: -4 + 9 = 5, and 5 − 3 = 2. Adding a positive to a negative moves toward zero and beyond. Careful sign handling gives the correct result of 2.
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