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Big Ideas Math: Modeling Real Life, Grade 7

BI

Big Ideas Math: Modeling Real Life, Grade 7 View details

1. Fractions, Decimals and Percents

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Exercise 12 Page 237

To write a decimal as a percent, multiply by 100 and add the percent symbol.

Percent: 233.3%
Model:

Practice makes perfect

Fractions, decimals, and percents are three ways to show parts of a whole. In this case, notice first the line on top of 3 in the given expression. 2.3 Recall that this line represents a repeating pattern. 2.3=2.333333... Now, to write a decimal as a percent, we multiply by 100 and add the percent symbol %.

percent as decimal

We found that 2.3 expressed as a percent is 233.3 %. We can also use a model to represent this number.

Subchapter links

Try It p.236-237

Self-Assessment for Concept & Skills p.237

Self-Assessment for Problem Solving p.238

Review & Refresh p.239

Concept, Skills, & Problem Solving p.239-240