Math 6/7 Percent Unit Extra Review

Convert 0.6 to a percent.

Answer explanation

multiply by 100

OR

slide decimal 2 places right

Answer explanation

divide numerator by denominator

Convert 0.006 to a percent.

Answer explanation

slide decimal 2 places right

Answer explanation

keep the whole number

divide the fraction

put the parts together

Answer explanation

rewrite as a decimal first then slide decimal twice to the right

(multiplying by 100)

Write 57% as a decimal.

• 5.7
• 0.057
• 57
• 0.57

Tags

CCSS.5.NBT.A.3

Which is the decimal for 3.5%?

• 3.5
• 0.35
• 0.0035
• 0.035

Tags

CCSS.5.NBT.A.3

What is 34% of 200?

Answer explanation

34/100 = x/200

If 15 is 30% of a number, what is the number?

• 30

• 45

• 50

• 60

Answer explanation

30/100 = 15/x

A shirt originally costs $40 and is on sale for 20% off. What is the sale price?

• $28

• $30

• $32

• $36

Answer explanation

find 20% of $40

then

subtract that amount from $40

OR

find 80% of $40, because you'd be paying 80% of the original price when there is a 20% off sale