Percent of a Number

Front

What does the term 'percent' mean?

Back

Percent means 'per hundred' and is a way to express a number as a fraction of 100.

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 25% of 80, calculate 80 * 0.25.

Front

What is 25% of 80?

Back

25% of 80 is 20.

Front

What is 75% of 20?

Back

75% of 20 is 15.

Front

What is 25% of 44?

Back

25% of 44 is 11.

Front

How do you find the percentage of a total in a word problem?

Back

Identify the total amount and the percentage given, then multiply the total by the percentage (in decimal form).

Front

In a school with 520 students, if 65% ride the bus, how many students ride the bus?

Back

To find the number of students who ride the bus, calculate 520 * 0.65 = 338 students.

Front

If Cary's dad gave her $20.00 and she spent 85% on shoes, how much money does he get back?

Back

Cary spent 85% of $20.00, which is $17.00. Therefore, he gets back $20.00 - $17.00 = $3.00.

Front

What is the formula to 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

How do you express a percentage as a fraction?

Back

To express a percentage as a fraction, place the percentage over 100 and simplify if possible. For example, 25% = 25/100 = 1/4.