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Lesson 9 · Workbook p. 80

Finding a Percent of a Number

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A pair of sneakers costs $60. They are on sale for 25% off. How much money do you save? How much do you pay?

In this video

  • Picture the percent on a percent bar.
  • Use the 10% trick to build any percent.
  • Find a percent of a number, the way it's done in class.

Try it together

What is 30% of 70?
Show the answer
21
10% of 70 is 7. 30% is three of those: 3 × 7 = 21.

Ask, don't tell

“What does 100% stand for in this story?”

“What is 10% of this number? How can that help?”

The workbook these videos go with

Math for Parents – 6th Grade, Book 2: Ratios & Percents. Picture-first lessons on ratios, rates, unit prices, and percents, with “Ask, don't tell” prompts on every page, worked examples, real-world missions, and answer keys with coaching notes, so you can help even if it's been years since you learned it.

On Amazon Sunday, November 15