Percentages

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.

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.

Front

What does a 10% discount mean?

Back

A 10% discount means that the price is reduced by 10 out of every 100 units of currency. For example, if an item costs $100, a 10% discount would reduce the price by $10.

Front

How do you find the total price after applying a discount and tax?

Back

First, calculate the discount amount and subtract it from the original price. Then, calculate the tax on the discounted price and add it to the discounted price.

Front

What is the formula to convert a decimal to a percentage?

Back

To convert a decimal to a percentage, multiply the decimal by 100 and add a percent sign. For example, 0.08 x 100 = 8%.

Front

What is 30% of 200?

Back

30% of 200 is 60. (200 x 0.30 = 60)

Front

What is the equivalent fraction of 25%?

Back

The equivalent fraction of 25% is 25/100, which simplifies to 1/4.

Front

How do you calculate the total cost after tax?

Back

To calculate the total cost after tax, multiply the original price by the tax rate (in decimal form) and add that amount to the original price.

Front

What is the relationship between fractions, decimals, and percentages?

Back

Fractions, decimals, and percentages are different ways to represent the same value. For example, 1/2 = 0.5 = 50%.

Front

If a shirt costs $40 and is on sale for 15% off, what is the sale price?

Back

The sale price is $34. (15% of $40 is $6, so $40 - $6 = $34.)