Understanding Percentages

What is the result of multiplying a number by 0.9?

• Finding 90% of the number

• Deducting 10% from the number

• Finding 10% of the number

• Adding 10% to the number

How did Italians historically represent percentages?

• With a subtraction sign

• With a % symbol

• With a flipped version of the % symbol

• With a multiplication sign

If you want to increase a quantity by 20%, what should you multiply it by?

• 2.0

• 1.02

• 0.8

• 1.2

What is the result of multiplying a number by 0.6?

• Increasing the number by 40%

• Finding 60% of the number

• Finding 40% of the number

• Deducting 60% from the number

What is the decimal equivalent of 10%?

• 10.0

• 1.0

• 0.1

• 0.01