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Percentage Calculations and Applications

Percentage Calculations and Applications

Assessment

Flashcard

Mathematics

7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a percentage?

Back

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

2.

FLASHCARD QUESTION

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 20% of 50, calculate 50 * 0.20 = 10.

3.

FLASHCARD QUESTION

Front

What does it mean to increase a number by a percentage?

Back

Increasing a number by a percentage means adding that percentage of the number to the original number. For example, increasing 100 by 10% means adding 10 (which is 10% of 100) to get 110.

4.

FLASHCARD QUESTION

Front

What does it mean to decrease a number by a percentage?

Back

Decreasing a number by a percentage means subtracting that percentage of the number from the original number. For example, decreasing 100 by 10% means subtracting 10 (which is 10% of 100) to get 90.

5.

FLASHCARD QUESTION

Front

If a shirt costs $50 and is on sale for 20% off, what is the sale price?

Back

The sale price is $40. (20% of $50 is $10, so $50 - $10 = $40.)

6.

FLASHCARD QUESTION

Front

What is the formula to find the total after a percentage increase?

Back

Total after percentage increase = Original amount + (Original amount * Percentage increase).

7.

FLASHCARD QUESTION

Front

What is the formula to find the total after a percentage decrease?

Back

Total after percentage decrease = Original amount - (Original amount * Percentage decrease).

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