What is 100% of a quantity?
Review Percent: Tape Diagrams & Double Number Line

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
100% of a quantity is the whole amount of that quantity. For example, if a candy package originally contains 50 ounces, then 100% of that package is 50 ounces.
2.
FLASHCARD QUESTION
Front
How do you calculate a percentage decrease?
Back
To calculate a percentage decrease, multiply the original amount by the percentage decrease (as a decimal) and subtract that from the original amount. For example, a 20% decrease from 50 ounces is calculated as 50 - (50 * 0.20) = 40 ounces.
3.
FLASHCARD QUESTION
Front
What does it mean to increase a quantity by a percentage?
Back
To increase a quantity by a percentage, multiply the original amount by the percentage increase (as a decimal) and add that to the original amount. For example, increasing 36 cookies by 50% means 36 + (36 * 0.50) = 54 cookies.
4.
FLASHCARD QUESTION
Front
What is a tape diagram?
Back
A tape diagram is a visual representation used to show the relationship between quantities. It helps in understanding addition, subtraction, multiplication, and division of numbers.
5.
FLASHCARD QUESTION
Front
What does a double number line represent?
Back
A double number line is a visual tool that shows two related sets of numbers, helping to illustrate relationships between them, such as ratios or percentages.
6.
FLASHCARD QUESTION
Front
How do you find the markdown amount when given a discount percentage?
Back
To find the markdown amount, multiply the original price by the discount percentage (as a decimal). For example, for a table costing $85 with a 35% discount, the markdown is 85 * 0.35 = $29.75.
7.
FLASHCARD QUESTION
Front
What is the new price after applying a discount?
Back
The new price after applying a discount is calculated by subtracting the markdown amount from the original price. For example, if the original price is $85 and the markdown is $29.75, the new price is 85 - 29.75 = $55.25.
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