Worked examples
Two examples
Example 1
Write 45% as a decimal.
- Percent means “out of 100,” so divide by 100: move the point 2 places to the left.
Answer: 0.45
Example 2
Write 0.07 as a percent.
- Multiply by 100: move the point 2 places to the right.
Answer: 7%
Where this is taught: Ratio, Proportion, and Percent, “Changing a percent to a decimal, and back”
The drill
Ten problems
How many:
Type the number only; where the answer is a percent, the % sign is already there. Then press Check my answers at the bottom.Write each answer on the line. The answer key, with the reasoning, is on the last page.