In addition, you need to calculate percentages and fractions and round off Numbers in order to count fast.

另外，你需要计算百分比和分数，并且为了算得快一些，你需要知道四舍五入。

youdao

In addition, you need to calculate percentages and fractions and round off Numbers in order to count fast.

另外，你需要计算百分比和分数，并且为了算得快一些，你需要知道四舍五入。

youdao