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 10% of a number?

Back

To calculate 10% of a number, divide the number by 10.

Front

What is 40% of 150?

Back

60

Front

How do you find the percentage of a part compared to a whole?

Back

Divide the part by the whole and multiply by 100.

Front

If 12 out of 30 cars finished a race, what percent finished?

Back

40%

Front

What does it mean if 60% of a group has a certain characteristic?

Back

It means that 60 out of every 100 members of the group have that characteristic.

Front

How do you convert a fraction to a percentage?

Back

Multiply the fraction by 100.

Front

What is the formula for calculating percentage?

Back

Percentage = (Part/Whole) x 100.

Front

If 40% of students take the bus, how many do not if there are 50 students?

Back

30 students do not take the bus.

Front

What is 20% of 200?

Back

40