Big Ideas Math: Modeling Real Life, Grade 7
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Practice Test
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Exercise 3 Page 276

To write a percent as a decimal, move the decimal point two places to the left and remove the percent symbol.

0.25

Fractions, decimals, and percents are three ways to show parts of a whole. We want to write the given percent as a decimal. 25.5 % Notice that there are repeating digits at the end of our percent. Let's rewrite the percent without using the bar notation! 25.5 % ⇔ 25.555... % To write a percent as a decimal, we ignore the percent symbol and move the decimal point two places to the left.
percent as decimal: 0.25...
The decimal corresponding to 25.5 % is a repeating decimal. We can rewrite the decimal using the bar notation. 0.25555... ⇔ 0.25