Question

下列表达式的值是多少？

$\frac{2}{10} + \frac{4}{100} + \frac{6}{1000}$

What is the value of

$\frac{2}{10} + \frac{4}{100} + \frac{6}{1000}?$

$.012$

$.0246$

$.12$

$.246$

$246$

知识点：小数位值

这三个分数分别表示不同数位上的小数： $\frac{2}{10} = .2$ ， $\frac{4}{100} = .04$ ， $\frac{6}{1000} = .006$ 。

相加得 $.2 + .04 + .006 = .246$ 。

所以正确答案是 D。

Each fraction is a decimal in a different place: $\frac{2}{10} = .2,$ $\frac{4}{100} = .04,$ and $\frac{6}{1000} = .006.$

Adding these gives $.2 + .04 + .006 = .246.$

Thus, the correct answer is D .