Finding the Whole from a Part and a Percent

25% of 80 is what number

• 20

• 80

• 48

• 95

20% of 65 is what number?

• 13

• 15

• 16

• 13.75

3% of 750 is what number?

• 2.25

• 22.5

• 225

When solving a percent problem, how do you find the WHOLE?

• Change the % to a decimal then multiply the decimal by the part.

• Change the % to a decimal then assign a variable for the whole and solve the equation.

• Change the % to a decimal then assign a variable for the part and solve the equation.

20 is 80% of what number?

• 25

• 24

• 26

• 20

18 is 40% of what number?

• 45

• 18

• 7.2

• 40

26 is 5% of what number?

Mathematical Equivalence

ON

Identify the part, base, and percent. Johnny gave 40 baseball cards to her friend which was 80% of her total baseball cards. How many baseball cards did he start with?

• Unknown

• Base

• 40

• Percent

• 80

• Part

Identify the part, base, and percent. Johnny gave 40 baseball cards to her friend which was 80% of her total baseball cards. How many baseball cards did he start with?

• 80

• Part

• 40

• Base

• Unknown

• Percent

What PERCENT of 88 is 11?

• 8%

• .125

• 12.5%

• 8.0