Math: Introduction to Percentages - What Is a Percent?
Understanding percent as parts out of 100
Math: Introduction to Percentages - What Is a Percent?
Understanding percent as parts out of 100
Math - Grade 4-5
- 1
Fill in the blank: Percent means parts out of ____.
The word percent means per hundred.
Percent means parts out of 100. - 2
A hundreds grid has 100 equal squares. If 25 squares are shaded, what percent of the grid is shaded?
25% of the grid is shaded because 25 out of 100 squares are shaded. - 3
Write 40% as a fraction with 100 as the denominator.
Use the percent number as the numerator and 100 as the denominator.
40% can be written as 40/100 because it means 40 parts out of 100. - 4
Write 7% as a fraction with 100 as the denominator.
7% can be written as 7/100 because it means 7 parts out of 100. - 5
A class has 100 students. If 62 students bring lunch from home, what percent of the students bring lunch from home?
When the total is 100, the number of parts is the percent.
62% of the students bring lunch from home because 62 out of 100 students bring lunch. - 6
A spinner is divided into 100 equal sections. If 50 sections are blue, what percent of the spinner is blue?
50% of the spinner is blue because 50 out of 100 equal sections are blue. - 7
Circle the larger amount: 30% or 60%. Explain how you know.
Compare the numbers before the percent signs.
60% is larger because 60 parts out of 100 is more than 30 parts out of 100. - 8
Write 100% as a fraction with 100 as the denominator. What does 100% mean?
100% can be written as 100/100. It means the whole amount or all of something. - 9
A rectangle is divided into 10 equal parts. If 3 parts are shaded, what percent is shaded?
Each tenth is equal to 10%.
30% is shaded because 3 out of 10 is the same as 30 out of 100. - 10
A bar is divided into 4 equal parts. If 1 part is shaded, what percent is shaded?
25% is shaded because 1 out of 4 equal parts is the same as 25 out of 100. - 11
Choose the matching fraction for 75%: 75/100, 75/10, or 100/75. Explain your choice.
Percent always compares a number to 100.
The matching fraction is 75/100 because 75% means 75 parts out of 100. - 12
A store sign says 20% off. In your own words, what does 20% mean?
20% means 20 out of every 100. A 20% discount means the price is reduced by 20 parts for every 100 parts of the original price. - 13
A hundreds grid has 10 squares shaded. What percent is shaded, and what percent is not shaded?
The shaded percent and unshaded percent must add to 100%.
10% is shaded because 10 out of 100 squares are shaded. 90% is not shaded because 90 out of 100 squares are unshaded. - 14
Fill in the blank: 50% of a shape is the same as ____ of the shape.
50 out of 100 is half of 100.
50% of a shape is the same as one half of the shape. - 15
Look at a battery icon that is 80% full. What fraction with 100 as the denominator shows the full part of the battery?
The full part of the battery is 80/100 because 80% means 80 parts out of 100.