1. Slide

60 seconds

Understanding Percentages

Percentages are a way to express a number or amount as a fraction of 100. For example, 25% is the same as saying 25 out of every 100. We can use percentages to compare parts of a whole or to compare amounts of money.

2. Word cloud

120 seconds

What is 10% of 100?

3. Slide

60 seconds

percentages of numbers and money

Percentage: A number or ratio that is expressed as a fraction of 100. It is used to compare one quantity to another or to measure how much one quantity changes in relation to another.

Percent Increase: The percent increase is the amount of change that occurs over a period of time expressed as a percentage of the original amount.

Percentage of a Number: A percentage of a number is a fraction of the number that has been multiplied by 100. This is what is used to calculate a percent increase or a percent decrease.

4. Poll

60 seconds

What is 25% of 100?

- 100
- 75
- 25
- 50

5. Poll

60 seconds

If you have $20 and spend 30% of it, how much money will you have left?

- $16
- $18
- $14
- $20

6. Poll

60 seconds

If a toy costs $10 and it's on sale for 20% off, how much will it cost?

- $8
- $12
- $10
- $9

7. Word cloud

120 seconds

What is 10% of 100?

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