AMC 8 1988 Problem 7

AMC8 1988 年第 7 题

表达式与运算★☆☆☆☆

2.46\times 8.163\times (5.17+4.829)

is closest to

2.46\times 8.163\times (5.17+4.829)

最接近

A.100
B.200
C.300
D.400
E.500

正确答案 · Correct Answer

B

解析 · Solution

Solution 1

2.46×8.163 \times (5.17 + 4.829) = 2.46×8.163×9.999 \approx 2.5×8 \times 10 = 200

.

- GaloisTorrent, edited by j314andrews,

继续练习

免费刷 1988 整卷 →