选择题
2017 AMC 8 Problem 4: Estimate a Product
When 0.000315 is multiplied by 7,928,564, the product is closest to which of the following?
2017 AMC 8 第4题：估算产品
当 0.000315 乘以 7,928,564 时，乘积最接近下列哪一项
A.
210
B.
240
C.
2,100
D.
2,400
E.
24,000