Percent Increase or Decrease

Percent Increase or Decrease

Assessment

Flashcard

Mathematics

9th Grade

Practice Problem

Hard

CCSS
6.RP.A.3C, HSF-IF.C.8B, HSF-LE.A.1B

Standards-aligned

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is percent increase?

Back

Percent increase is the amount of increase expressed as a percentage of the original amount. It is calculated using the formula: ((new value - original value) / original value) x 100.

Tags

CCSS.6.RP.A.3C

2.

FLASHCARD QUESTION

Front

What is percent decrease?

Back

Percent decrease is the amount of decrease expressed as a percentage of the original amount. It is calculated using the formula: ((original value - new value) / original value) x 100.

Tags

CCSS.6.RP.A.3C

3.

FLASHCARD QUESTION

Front

How do you calculate a 30% markup on an item that costs $4.25?

Back

To calculate a 30% markup, multiply the cost by 0.30 and add it to the original cost: $4.25 + ($4.25 x 0.30) = $5.53.

Tags

CCSS.6.RP.A.3C

4.

FLASHCARD QUESTION

Front

If a population of fruit flies increases from 100 to 140, what is the percent increase?

Back

Percent increase = ((140 - 100) / 100) x 100 = 40%.

Tags

CCSS.6.RP.A.3C

5.

FLASHCARD QUESTION

Front

How do you decrease a number by 10%?

Back

To decrease a number by 10%, multiply it by 0.90.

Tags

CCSS.6.RP.A.3C

6.

FLASHCARD QUESTION

Front

What does the equation A=200(1.1)^t represent?

Back

This equation represents exponential growth, indicating that the initial amount is $200 and it increases by 10% each time period (t).

Tags

CCSS.HSF-IF.C.8B

7.

FLASHCARD QUESTION

Front

What is the formula for calculating percent change?

Back

Percent change = ((new value - old value) / old value) x 100.

Tags

CCSS.6.RP.A.3C

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