Unit 4 Pre-Assessment

Front

What is a ratio?

Back

A ratio is a relationship between two numbers that shows how many times the first number contains the second.

Front

How do you write a ratio?

Back

A ratio can be written in three ways: using a colon (e.g., 3:5), as a fraction (e.g., 3/5), or with the word 'to' (e.g., 3 to 5).

Front

If the ratio of red paint to yellow paint is 3:5, how much yellow paint is needed for 9 oz of red paint?

Back

15 oz of yellow paint.

Front

What is the ratio of players to coaches if there are 10 players and 3 coaches?

Back

The ratio is 10:3.

Front

Which ratio is equivalent to 5 to 4?

Back

25 to 20.

Front

If there are 5 boys and 7 girls, what is the ratio of girls to boys?

Back

The ratio is 7 to 5.

Front

What is the total number of toy cars if Patrick has 2 black, 3 red, and 5 white toy cars?

Back

The total is 10 toy cars.

Front

What is the ratio of red toy cars to all toy cars if Patrick has 3 red toy cars?

Back

The ratio is 3:10.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between numbers.