STAAR Review - Percents

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is often used to compare quantities.

Front

How do you calculate the percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (as a decimal). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Tags

CCSS.6.RP.A.3C

Front

What is the formula for percent change?

Back

Percent change = ((New Value - Old Value) / Old Value) * 100.

Tags

CCSS.6.RP.A.3C

Front

If a shirt costs $40 and is on sale for $30, what is the percent decrease in price?

Back

Percent decrease = ((40 - 30) / 40) * 100 = 25%.

Tags

CCSS.6.RP.A.3C

Front

How do you find the total number when given a percent and the part?

Back

Use the formula: Total = Part / (Percent / 100). For example, if 40% of the total is 20, then Total = 20 / (40 / 100) = 50.

Tags

CCSS.6.RP.A.3C

Front

What does it mean if 60% of a class passed a test?

Back

It means that out of the total number of students in the class, 60% achieved a passing score.

Tags

CCSS.6.RP.A.3C

Front

How do you convert a fraction to a percent?

Back

Front

What is the relationship between fractions, decimals, and percents?

Back

Front

If 240 students purchased school supply packs and this represents 60% of the total students, how many students are there in total?

Back

Total students = 240 / (60 / 100) = 400.

Tags

CCSS.6.RP.A.3C

Front

What is the percent of boys in a class with 6 boys and 9 girls?

Back