12/9 Writing Ratios 3 Ways flashcard retake

Front

What is a ratio?

Back

A ratio is a way to compare two quantities by using division. It shows how many times one value contains or is contained within the other.

Front

What does 'part to part' ratio mean?

Back

A part to part ratio compares two different parts of a whole. For example, if there are 3 red apples and 2 green apples, the part to part ratio of red to green is 3:2.

Front

What is 'additive reasoning'?

Back

Additive reasoning is when you think about how much more or less one quantity is compared to another. For example, if you have 5 apples and get 3 more, you think about 5 + 3.

Front

What is 'multiplicative reasoning'?

Back

Multiplicative reasoning is when you think about how many times one quantity is compared to another. For example, if you have 3 times as many pencils as your friend, you think about 3 x the number of pencils your friend has.

Front

How do you write a ratio?

Back

A ratio can be written in three ways: using a colon (e.g., 4:3), as a fraction (e.g., 4/3), or with the word 'to' (e.g., 4 to 3).

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

The ratio is 4:3.

Front

If there are 53 students who like football and 42 who like baseball, what is the part to part ratio of football to baseball?

Back

The part to part ratio is 53:42.

Front

What is the ratio of orange circles to all circles if there are 3 orange circles and 5 total circles?

Back

The ratio is 3:5.

Front

If Mrs. Silvers has 3 more notebooks than Mrs. Miller, what type of reasoning is this?

Back

This is additive reasoning.

Front

If Mrs. Falls has 3 times the number of pencils as Mrs. Mittan, what type of reasoning is this?

Back

This is multiplicative reasoning.