What is a percent?
Percent Proportions Review #1

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Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.
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 x 0.20 = 10.
3.
FLASHCARD QUESTION
Front
What is the formula to find what percent one number is of another?
Back
The formula is (part/whole) x 100 = percent. For example, to find what percent 30 is of 150, calculate (30/150) x 100 = 20%.
4.
FLASHCARD QUESTION
Front
What does it mean to find 'of' in a percentage problem?
Back
Finding 'of' in a percentage problem means to multiply the total amount by the percentage.
5.
FLASHCARD QUESTION
Front
If 30% of 200 is 60, how do you find 30% of another number?
Back
To find 30% of another number, multiply that number by 0.30. For example, for 300, calculate 300 x 0.30 = 90.
6.
FLASHCARD QUESTION
Front
What is the relationship between fractions and percentages?
Back
Fractions can be converted to percentages by dividing the numerator by the denominator and multiplying by 100.
7.
FLASHCARD QUESTION
Front
How do you convert a percentage to a decimal?
Back
To convert a percentage to a decimal, divide by 100. For example, 25% becomes 0.25.
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