Finding the Unknown with Percents

It is a number or ratio expressed as a fraction of 100

• Ratio

• Percent

• Percentage

• Base

How do we change decimals to percent?

• Move the decimal point to the right thrice

• Move the decimal point to the left twice

• Move the decimal point to the right twice

• Move the decimal point to the right once

What is 1.05 in percent?

What is the unknown in the question below:

What is 10% of 170?

• percentage
• percent

• rate

• base

What is 70% of 30?

• 13

• 17

• 19

• 21

What is 35% of 200?

• 50

• 60

• 70

• 80

What is the unknown in the question below:

What percent of 200 is 40?

• percent

• rate

• percentage

• base

What percent of 500 is 125?

• 25%

• 45%

• 75%

• 90%

What percent of 300 is 195?

• 30%

• 65%

• 75%

• 85%

What is the unknown in the question below:

  60% of what number is 150?

• percent

• percentage

• rate

• base