Converting Fractions and Decimals to Percentages

What should you do if you haven't watched the previous video?

• Watch the previous video first

• Skip both videos

• Continue watching this video

• Read a book on percentages

Tags

CCSS.RI.7.3

CCSS.RI.7.5

CCSS.RI.8.3

CCSS.RI.9-10.3

CCSS.RI.9-10.5

What do percentages represent?

• Negative numbers

• Imaginary numbers

• Whole numbers

• Parts of a whole

How can you write a fraction with a denominator of 100 as a percentage?

• By multiplying by 10

• By dividing by 10

• By adding 100

• By using the percent sign (%)

What is 40 over 100 as a percentage?

• 4%

• 40%

• 0.4%

• 400%

How would you write 85 over 100 as a percentage?

• 8.5%

• 850%

• 85%

• 0.85%

What does the decimal 0.45 represent as a percentage?

• 450%

• 45%

• 4.5%

• 0.45%

What is a quick trick to convert a decimal to a percentage?

• Move the decimal point two places to the right

• Move the decimal point two places to the left

• Add 100 to the decimal

• Subtract 100 from the decimal

How would you write 0.90 as a percentage?

• 9%

• 90%

• 900%

• 0.9%

How do you convert 36% into a decimal?

• Move the decimal point two places to the left

• Move the decimal point two places to the right

• Add 0.36

• Subtract 0.36

What is the imaginary decimal point used for in converting percentages to decimals?

• To the right of the tens place

• To the left of the ones place

• To the right of the ones place

• To the left of the tens place