Double Number Lines

Front

What is a double number line?

Back

A double number line is a visual representation that shows two sets of numbers along parallel lines, helping to illustrate the relationship between two quantities.

Front

How do you find the ratio of two quantities?

Back

To find the ratio, divide each quantity by the greatest common factor (GCF) of both quantities.

Front

If the ratio of dogs to cats is 5 to 3 and there are 25 dogs, how many cats are there?

Back

15 cats.

Front

What does a ratio of 5 to 3 mean?

Back

It means for every 5 dogs, there are 3 cats.

Front

How can you use a double number line to solve problems?

Back

You can use it to compare two related quantities and find missing values by looking at the corresponding points on the lines.

Front

If 18 people can go down a slide in 3 minutes, how long would it take for 12 people?

Back

2 minutes.

Front

What is the purpose of a ratio table?

Back

A ratio table helps to organize and compare ratios, making it easier to see relationships between quantities.

Front

If Justin types 408 words in 4 minutes, how many words does he type per minute?

Back

102 words per minute.

Front

How do you calculate words per minute?

Back

Divide the total number of words by the total time in minutes.

Front

If Kim makes 8 loaves of bread, how many cups of raisins does she use if the ratio is 2 cups for every 4 loaves?

Back

12 cups of raisins.