Ratio & Ratio Tables

There are 15 boys to 12 girls in a class. if i want the ratio of boys to all students, What kind of ratio am I asking for?

• part to part

• no part

• half part

• part to whole

How do you make equivalent ratios smaller?

• Multiply

• Subtract

• Divide

• Add

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

What is the ratio of green marbles to red marbles?

• 3/2

• 3/1

• 3/3

• 2/3

What is the ratio of red circles to blue stars?

• 3:4

• 7/4

• 11/4

• 4 to 7

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7

• 7 to 5

• 5 to 12

• 7 to 12

What is C?

• 80

• 24

• 96

• 92

What are three ways to write a ratio for the amount of dogs compared to the number of cats.

• 7:11

• 11:7

• 11 to 7

• 11/7

• 12 to 7

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5

• 5 to 3

• 3 to 5

• 5 to 2