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Mathematics · 术语表

什么是 Tenths and hundredths？

Definition 25.1 Primary & Middle School Mathematics · 第 25 章 — Tenths and Hundredths

Cutting a unit into $10$ equal parts gives tenths, $\frac{1}{10}$ ; cutting each tenth into $10$ again gives hundredths, $\frac{1}{100}$ . So

1 = \frac{10}{10} = \frac{100}{100}, \qquad \frac{1}{10} = \frac{10}{100}.

The hundred-square: ten columns of ten cells. One column is a tenth, one cell a hundredth.

示例

Example 25.2

Shading $3$ columns and $7$ extra cells of the hundred-square shades

\frac{3}{10} + \frac{7}{100} = \frac{30}{100} + \frac{7}{100} = \frac{37}{100}

of the square — thirty-seven hundredths.

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