AMC 8 1986 Problem 4
AMC8 1986 年第 4 题
表达式与运算★☆☆☆☆
The product (1.8)(40.3+0.07) is closest to
乘积 (1.8)(40.3+0.07) 最接近
- A.7
- B.42
- C.74
- D.84
- E.737
正确答案 · Correct Answer
C
解析 · Solution
Solution 1
(1.8)(40.3 +.07) = (1.8)(40.37), which is slightly more than (1.8)(40) = 72. So this expression is closest to 74.
-abcde26, edited by j314andrews
(1.8)(40.3 +.07) = (1.8)(40.37) = 72.666, which is closest to 74.
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