Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you create a ratio table?

Back

A ratio table is created by listing pairs of equivalent ratios in a table format, allowing for easy comparison and calculation of missing values.

Front

If 3 tennis balls are in 1 tube, how many tennis balls are in 32 tubes?

Back

96 tennis balls (3 balls/tube * 32 tubes = 96 balls).

Front

What is the purpose of a ratio table?

Back

The purpose of a ratio table is to help visualize and calculate equivalent ratios, making it easier to solve problems involving proportions.

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 (9 oz red * (5 oz yellow / 3 oz red) = 15 oz yellow).

Front

To make iced tea, if 5 tea bags are used for 1 gallon of water, how many tea bags are needed for 4 gallons?

Back

20 tea bags (5 tea bags/gallon * 4 gallons = 20 tea bags).

Front

What is a missing value in a ratio table?

Back

A missing value in a ratio table is an unknown quantity that can be calculated using the known ratios in the table.

Front

If 1 scoop of coffee grounds is added to 2 cups of water, how many cups of water are needed for 5 scoops?

Back

10 cups of water (5 scoops * 2 cups/scoop = 10 cups).

Front

What does it mean to scale a ratio?

Back

Scaling a ratio means multiplying or dividing both parts of the ratio by the same number to find equivalent ratios.

Front

How can you check if two ratios are equivalent?

Back

Two ratios are equivalent if their cross products are equal (a/b = c/d means a*d = b*c).