Percentages review

To convert a percentage into a decimal or a fraction, we ​ (a)   by 100.

• divide
• multiply

What is 35% as a decimal?

• 35

• 3.5

• 0.35

• 0.035

Which of the following number sentences shows the correct method to find 7% of 28?

Answer explanation

The two correct answers each contain an alternate way to write 7%. - 7/100 and 0.07 which are the fraction and decimal forms of 7%

What do you do for a discount from the Marked price?

• add

• subtract

• multiply

• divide

A slightly damaged air conditioner has its price reduced from $900 to $700. What is the percentage discount?

• 28.5%

• 22.3%

• 22.2%

• 28.6%

A T-shirt is sold to make a profit of 70%. If they sold for $150, what was their cost price?

• $88.24

• $105

• $255

• $45

Match the following

• Final Amount - Principal

• Interest

• Final Amount - Interest

• Principal

• Principal + Interest

• Final Amount

When the Interest is calculated on Principal + accumulated interest, it is:

• Simple Interest

• Compound Interest