Unit 3 Lesson 14

What do you notice about these questions? Try to solve without a calculator first.

If all 5 boxes in the diagram equal 100%, what percent would one of the boxes equal?

• 20 %

• 12%

• 25%

• 10%

When he had the 12 x 0.8, he could have ignored the decimal for a minute, multiplied the whole numbers 12 x 8 to get 96, and then put the decimal back in. There is one place behind the decimal in 0.8 so there must be one place behind the decimal in 96 making it What for the final answer

• 96

• 9.6

• 0.96

• 96.0

Could you just multiply 18 x 6 for the numerator and then 1 x 10 for the denominator to find the answer for 18 x 6/10?

• Yes

• No

Remember to find 10% of any number, move the decimal one place to the left. 10% means 10/100 or 1/10 and multiplying by 1/10 is the same as dividing by 10. When you divide by 10, you move the decimal one place to the left to get a smaller answer. 

Answer this question now on your packet. Type your answer in below

How do you go from 100 to 10?

• Multiply by 10

• Divide by 10

• Subtract 90

• Add 90

What is 100 DIVIDED by 4 or 100 TIMES 1/4

• 20

• 25

• 30

• 0.25

160 is what % of 40

• 25%

• 400%

• 250%

• 40%

What number is 40% of 160?

• 16

• 1.6

• 64

• 32

At what rate does the Ant travel per centimeter?