Finding Common Percents

What's 10% of 200?

• 2

• 20

• 200

• 0.2

What's 50% of 30?

• 3

• 15

• 10

• 16

• 12

What's 75% of 20?

• 7.5

• 15

• 16

• 20

• 12

What's 25% of 300?

• 60

• 65

• 70

• 75

• 80

Mathematical Equivalence

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6.5.B

Desiree spent 20% of her birthday money on a new bicycle. Which are equivalent to 20%? Choose all the equivalent expressions.

​ ​ (a)   ​ ​ (b)   ​ (c)  

• 0.2

• 0.002

• 0.02

A percent is a part-to-whole ratio with a whole of 100. You can write 25% as 25:100 or 25/100​​. Select the correct numbers to complete the sentences.

Caleb gets 20 cents from every dollar, which is 100 cents. The ratio of his earnings is ​ (a)   which is ​ (b)    

Tillie gets 30 cents from every dollar. The ratio of her earnings is ​ (c)   which is ​ (d)  

• 20:100

• 20%

• 30:100

• 30%

Select the value that represents a percentage that fits

11% ​ ​ (a)   17%

• 0.159

• 0.013

What's 1% of 300?

• 0.3

• 3

• 30

• 300

What's 10% of 75?

• 0.75

• 7.5

• 7

• 75