Percent Proportion Review

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 45% of 50, calculate 50 * 0.45 = 22.5.

Tags

CCSS.6.RP.A.3C

Front

What is the formula to find what percent one number is of another?

Back

The formula is: (part/whole) * 100 = percent. For example, to find what percent 20 is of 50, calculate (20/50) * 100 = 40%.

Front

If 14 is 20% of a number, how do you find that number?

Back

To find the number, divide the part by the percentage (in decimal form). So, 14 / 0.20 = 70.

Tags

CCSS.6.RP.A.3C

Front

What does it mean if 40% of a class takes the bus?

Back

It means that 40 out of every 100 students in the class use the bus to get to school.

Front

How do you find the number of students who do not take the bus if 40% do?

Back

If 40% take the bus, then 60% do not. To find the number, calculate 60% of the total number of students.

Tags

CCSS.6.RP.A.3C

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying by 100. For example, 1/2 = 0.5 = 50%.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide by 100. For example, 25% = 25/100 = 0.25.

Front

If a pitcher won 80% of 35 games, how do you find the number of games won?

Back

Multiply the total games by the winning percentage: 35 * 0.80 = 28 games won.

Tags

CCSS.6.RP.A.3C

Front

What is the first step in solving a percent problem?

Back

Identify what is being asked: Are you finding a percentage of a number, or finding what number a percentage represents?