Solving Percent Problems

Front

What is the formula to calculate percentage?

Back

Percentage = (Part / Whole) × 100

Front

Find the percentage for 3 out of 5.

Back

60%

Front

If a class has 50 students and 20% of them are girls, how many girls are in the class?

Back

10 girls

Front

Bill is in a class of 23 girls and 27 boys. 40% of all the students in his class take the bus to school. How many students take the bus to school?

Back

20 students

Front

A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

Back

16 problems

Front

A baseball pitcher won 80% of the games he pitched. If he pitched 35 ballgames, how many games did he win?

Back

28 games

Front

Michael spent $210 on school supplies and books. This amount was 30% of his savings. How much was his savings?

Back

$700

Front

What does it mean if a student scores 90% on a test?

Back

The student answered 90% of the questions correctly.

Front

If 25% of a number is 50, what is the number?

Back

200

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100.