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 is 100% of a number?

Back

100% of a number is the whole number itself. For example, 100% of 50 is 50.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 25% becomes 0.25.

Front

What is 50% of 200?

Back

50% of 200 is 100.

Front

What is the formula to find the total amount after adding a tip?

Back

Total Amount = Original Amount + (Tip Percentage x Original Amount).

Front

If a shirt costs $40 and is on sale for 25% off, what is the sale price?

Back

The sale price is $30. (25% of $40 is $10, so $40 - $10 = $30.)

Front

What is 10% of 150?

Back

10% of 150 is 15.

Front

How do you express 6% as a fraction?

Back

6% can be expressed as 6/100.

Front

What is the relationship between percentages and fractions?

Back

Percentages can be converted to fractions by placing the percentage over 100 and simplifying if possible.