Mental Math Percent of a Number

If 10% is 6... what is 100%

If 25% is 8... what is 100%

If 10% is 12... what is 50%

If 50% is 16... what is 75%

If 1% is 3... what is 15%

What is 30% of 90?

• 9

• 18

• 270

• 27

What is 10% of 578?

• .578

• 57.8

• 5.78

• 578

What is 20% of 80?

• 16

• 8

• 0.8

• 160

What is 40% of 20?

• 2

• 4

• 6

• 8

What is 50% of 330?

• 33

• 150

• 165

• 3.3