Grade 6 | Unit 3 | Lesson 11: Percentages and Double Number Lines | Practice Problems

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 25% of 200, calculate 200 x 0.25 = 50.

Front

What does it mean if a value is 250% of another value?

Back

If a value is 250% of another value, it means it is 2.5 times that value. For example, if the original value is 80, then 250% of it is 80 x 2.5 = 200.

Front

How do you convert a percentage to a fraction?

Back

To convert a percentage to a fraction, place the percentage number over 100 and simplify if possible. For example, 75% = 75/100 = 3/4.

Front

What is a double number line?

Back

A double number line is a visual representation that shows two sets of numbers along parallel lines, helping to compare and understand relationships between them.

Front

If Priya made 150% of her previous successful free throws, how do you calculate that?

Back

To calculate 150% of a number, multiply the number by 1.5. If Priya made 12 free throws yesterday, today she made 12 x 1.5 = 18 free throws.

Front

What is the formula to find the total when given a percentage?

Back

The formula is: Total = (Part / Percentage) x 100. For example, if 80 is 250%, then Total = (80 / 250) x 100 = 32.

Front

How do you find 25% of a total?

Back

To find 25% of a total, divide the total by 4. For example, 25% of 40 is 40 / 4 = 10.

Front

What does it mean to be successful on 25% of attempts?

Back

It means that out of all attempts, only one-fourth were successful. For example, if Mai attempted 40 free throws and was successful on 25%, she made 10 successful throws.

Front

How do you express a fraction as a percentage?

Back

To express a fraction as a percentage, divide the top number (numerator) by the bottom number (denominator) and multiply by 100. For example, 1/4 = (1 ÷ 4) x 100 = 25%.