Unit 1 and 2 Ratios Review

A box is full of buttons. The ratios of red buttons to white buttons is 6:3. What does this mean?

• For every 6 red buttons there are 3 white buttons

• For every 6 white buttons there are 3 red buttons.

• There are 6 as many red buttons as white buttons.

• There are 3 times as many white buttons as red buttons.

On World Book Day, students could dress up like their favorite book character for extra credit. In an 2nd grade class, 5 out of 15 girls wore costumes, and 6 out of 12 boys wore costumes.

Which statements correctly describe the number of students in the class who dressed up for World Book Day? Select ALL true statements.

• The ratio of the number of students who wore a costume to the total number of students in the class 11:27

• One out of every 2 boys wore a costume

• The ratio of the students who wore costumes to the total number of students in the class is 11:22

• Of the girls in the class, 1/3 wore a costume.

Vanilla Pound Cake

1 1/2 cups of butter

3 cups of sugar

3 cups of flour

6 eggs

1 teaspoon baking powder

2 teaspoons of vanilla

According to the recipe, for every 3 cups of sugar, _____________ eggs are needed.

Vanilla Pound Cake

1 1/2 cups of butter

3 cups of sugar

3 cups of flour

6 eggs

1 teaspoon baking powder

2 teaspoons of vanilla

The ratio of sugar to eggs is 1 part sugar to _____ eggs.

• 6

• 12

• 2

• 1

Vanilla Pound Cake

1 1/2 cups of butter

3 cups of sugar

3 cups of flour

6 eggs

1 teaspoon baking powder

2 teaspoons of vanilla

For every 12 parts eggs, _______ cups of sugar is needed

• 3

• 6

• 9

• 12

Which of the following statements is true? Select all that apply.

• All the ratios are equivalent to 1:3

• It cost $3 per sandwich.

• It costs $1 for 3 sandwiches.

• The missing number is $36.

• The missing number is $32

Using the information from the last question, explain the relationship that exists between the number of sandwiches and the cost in dollars. Please explain using the simplest ratio.

For every 2 cups of water, there are _____ cups of rice.

There are ____ cups of water for every 9 cups of rice.

Which of these are true? Choose ALL that apply.

• 5 pairs of socks will cost $15.

• 7 pairs of socks will cost $21

• $2 will buy 1 pair of socks.

• All of the ratios are equivalent to 1:3 when simplified.

• $60 will buy 20 pairs of socks.

Mrs. Quinto purchases a gallon of milk every 6 days and a box of cereal every 9 days. Today she bough both items. In how many days will she buy both items together again? Find the LCM to figure this out.

• 6 days

• 18 days

• 3 days

• 24 days