Introduction to Percentages

20% of the students in Mr. Royal's classroom are 12 years old.  If there are 15 students in the classroom, how many students are 12 years old? 

• 2

• 3

• 4

• 5

What fraction is equivalent to 25%?

• 1/3

• 1/4

• 1/5

• 1/8

Which describes the shaded portion of the figure?

• 1/2 = 50%

• 1/6 = 0.166....

• 1/5 = 25%

• 1/5 = 20%

Convert 0.81 to a percent

• 0.81%

• 0.18%

• 8.1%

• 81%

How do you express one half as percentages?

• 100%

• 25%

• 50%

• 75%

How do you express one quarter as percentages?

• 100%

• 25%

• 50%

• 75%

How would you say 100% in other words?

• one whole

• one quarter

• three quarters

• one half

How would you say 75% in other words?

• one whole

• one quarter

• three quarters

• one half

Eliza bought a meal that cost $ 12.00. She tipped the waiter 25% of that amount. How much was the tip?

• $ 15.00

• $ 12.25

• $3.00

• $4.00

The price of a computer is 25 % off 800. Which was the new price?

• $660

• $1000

• $540

• $600