Percents Pre Test

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted using the symbol '%'. For example, 25% means 25 out of 100.

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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.

Front

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

Back

The formula is: Percent = (Part/Whole) x 100. For example, if you have 20 out of 50, the percent is (20/50) x 100 = 40%.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the top number (numerator) by the bottom number (denominator) and then multiply by 100. For example, 3/5 = (3 ÷ 5) x 100 = 60%.

Front

What is a discount?

Back

A discount is a reduction in the price of a product or service, usually expressed as a percentage of the original price.

Front

How do you calculate the sale price after a discount?

Back

To calculate the sale price, subtract the discount amount from the original price. For example, if a shirt costs $35 and has a 25% discount, the discount is $8.75, so the sale price is $35 - $8.75 = $26.25.

Front

What is a tip?

Back

A tip is a small amount of money given to someone for their service, often expressed as a percentage of the total bill.

Front

How do you calculate a tip?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form). For example, for a $45.80 bill with a 20% tip, calculate $45.80 x 0.20 = $9.16.

Front

How do you find what percent one number is of another?

Back

To find what percent one number is of another, divide the first number by the second number and multiply by 100. For example, to find what percent 200 is of 720, calculate (200/720) x 100 = 27.78%, rounded to 28%.

Front

What is the relationship between fractions and percents?

Back

Fractions and percents are two ways to express the same concept. A fraction can be converted to a percent by dividing the numerator by the denominator and multiplying by 100.