Benchmark Percentages of Numbers

When you are finding 1% of a number, what number are you dividing your whole by?

• 1

• 10

• 100

• 4

When you are finding 10% of a number, what are you dividing by?

• 100

• 0.10

• 5

• 10

When are you finding 25% of a number, what number are you dividing your whole by?

• 4

• 1

• 25

• 0.25

When you are finding 50% of a number, what number are you dividing your whole by?

• 0.50

• 2

• 50

• 10

Which statement describes how to find 30% of a number mentally?

• Find 1% of a number and divide it by 3

• Find 1% of a number and multiply it by 3

• Find 10% of a number and divide it by 3

• Find 10% of a number and multiply it by 3

Which statement describes how to find 5% of a number mentally?

• Find 10% of a number and find half of that (divide by 2)

• Find 1% of a number and divide by 2

• Find 10% of a number and mutitply by 2

• Find 1% of a number and multiply by 2

What is 20% of 75?

• 15
• 60
• 6
• 1.5

What is 20% of 65?

• 13

• 15

• 16

• 13.75

What is 30% of 40?

• 12

• 4

• 8

• 16

What is 10% of 500?

• 5

• 100

• 500

• 50