7th Grade Percent Proportions

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It represents how many parts out of 100 are being considered.

Front

How do you calculate the percentage of correct answers on a test?

Back

To calculate the percentage of correct answers, divide the number of correct answers by the total number of questions, then multiply by 100.

Front

If a student answers 36 questions correctly out of 40, what is their percentage score?

Back

90% (36/40 * 100 = 90%)

Front

What is the formula to find what percent one number is of another?

Back

The formula is (part/whole) * 100.

Front

If 78 is what percent of 390, how do you find the answer?

Back

Use the formula: (78/390) * 100 = 20%.

Front

How do you find the number of correct answers from a percentage score?

Back

Multiply the percentage (as a decimal) by the total number of questions.

Front

If a student scored 84% on a test with 25 questions, how many questions did they answer correctly?

Back

21 questions (0.84 * 25 = 21) rounded to the nearest whole number.

Front

What does it mean if 26 is 5% of a number?

Back

It means that 26 is 5 parts out of 100 of that number.

Front

How do you find the whole number if you know a part and its percentage?

Back

Use the formula: whole = part / (percentage/100).

Front

If the Warriors made 8 out of 20 shots, how do you calculate the percentage of shots missed?

Back

First, find the number of missed shots (20 - 8 = 12), then calculate (12/20) * 100 = 60%.