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Lesson · Grade 6 · Mathematics

Percent of an Amount

  • Grade 6
  • Mathematics
  • 1 min 7 s
  • British Columbia
  • BC6-MA-18

A $60 jacket is 30% off, and a bar split into ten 10% parts shows that the saving, 30% of $60, is 3 × $6 = $18. The video then gets the same answer the quicker way: write 30% as the decimal 0.3 and multiply by the price.

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In one sentence

The question this lesson answers

A jacket costs 60 dollars, and it is 30 percent off.

How much money do you save?

Transcript

What the lesson says

A jacket costs 60 dollars, and it is 30 percent off.

How much money do you save?

So we need to find 30 percent of 60 dollars.

The whole price, 60 dollars, is 100 percent.

Split the bar into 10 equal parts. Each part is 10 percent.

60 divided by 10 is 6, so each part is worth 6 dollars.

30 percent is 3 of these parts.

3 times 6 dollars is 18 dollars.

There is a quicker way. Percent means out of 100, so 30 percent is 0.3.

Then multiply 0.3 by the price, 60 dollars.

0.3 times 60 is 18. It is the same answer.

So you save 18 dollars.

To find a percent of an amount, write the percent as a decimal and multiply by the amount.

Curriculum

Where this fits

British Columbia, Grade 6

Mathematics, Number: whole-number percents and percentage discountsBC6-MA-18

Previous: One Number, Four Forms: 3/4 = 0.75 = 75% = 3:4Next: Finding the Whole or the Percent When One Is Missing

British Columbia, Grade 7

Mathematics, Financial literacy: financial literacy: financial percentageBC7-MA-72

Next: Sales tax in BC: GST and PST

This lesson is also listed in Grade 7.

The outcomes and strands follow the British Columbia curriculum.

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