Mathematical Reasoning第 57 / 120 题
The temperature rose from -5°F to 12°F. By how many degrees did it rise?
a.17°F
b.7°F
c.-17°F
d.12°F
解析
The change equals 12 − (−5) = 12 + 5 = 17 degrees. Subtracting a negative is the same as adding its positive. The temperature climbed 17°F.
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