Percent Word Problems

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

How do you convert a fraction to a percent?

Back

Front

What is the formula to find the percent of a number?

Back

The formula to find the percent of a number is: Percent = (Part/Whole) × 100. For example, if you want to find what percent 20 is of 80, you would calculate: (20/80) × 100 = 25%.

Front

How do you find the part when given the percent and the whole?

Back

To find the part when given the percent and the whole, use the formula: Part = (Percent/100) × Whole. For example, to find 20% of 50: (20/100) × 50 = 10.

Tags

CCSS.6.RP.A.3C

Front

What does it mean if 25% of a class passed a test?

Back

If 25% of a class passed a test, it means that out of every 100 students, 25 students passed. If there are 40 students in the class, then 25% of 40 is 10 students.

Front

How do you calculate the percent increase?

Back

To calculate the percent increase, use the formula: Percent Increase = ((New Value - Original Value) / Original Value) × 100. For example, if a price increases from $50 to $60, the percent increase is ((60 - 50) / 50) × 100 = 20%.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate the percent decrease?

Back

To calculate the percent decrease, use the formula: Percent Decrease = ((Original Value - New Value) / Original Value) × 100. For example, if a price decreases from $80 to $60, the percent decrease is ((80 - 60) / 80) × 100 = 25%.

Tags

CCSS.6.RP.A.3C

Front

If a store has a sale of 30% off, how do you find the sale price?

Back

To find the sale price, first calculate the discount amount by multiplying the original price by the percent off (as a decimal). Then subtract the discount from the original price. For example, if an item costs $100, the sale price is: $100 - ($100 × 0.30) = $70.

Tags

CCSS.6.RP.A.3C

Front

What is a tape diagram?

Back

A tape diagram is a visual model that uses rectangles to represent numbers and their relationships. It is often used to solve percent problems by showing parts and wholes.

Tags

CCSS.7.RP.A.2C

Front

How do you solve a percent word problem?

Back

To solve a percent word problem, identify the whole, the part, and the percent. Use the appropriate formulas to find the missing values. Draw a tape diagram if needed to visualize the problem.

Tags

CCSS.6.RP.A.3C