Illustrative Math Grade 6 Unit 2 Review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another. It can be expressed in different forms such as fractions, decimals, or with a colon (e.g., 2:5).

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms of the ratio by their greatest common divisor (GCD). For example, the ratio 4:8 can be simplified to 1:2 by dividing both terms by 4.

Front

What is the ratio of green marbles to blue marbles if there are 8 green and 20 blue?

Back

The ratio of green to blue marbles is 2 to 5.

Front

If Mrs. Shelly paid $3 for 6 muffins, what is the cost of 1 muffin?

Back

The cost of 1 muffin is $0.50.

Front

How do you find the cost of multiple items if you know the cost of one?

Back

Multiply the cost of one item by the number of items. For example, if 1 muffin costs $0.50, then 15 muffins cost $0.50 x 15 = $7.50.

Front

What is a double number line?

Back

A double number line is a visual representation that shows two related quantities along two parallel lines, helping to illustrate ratios and relationships between them.

Front

If Toni can type 180 words in 2 minutes, how many words can she type in 1 minute?

Back

Toni can type 90 words in 1 minute.

Front

How do you calculate the number of words typed in a different time frame based on a ratio?

Back

Use the ratio to find the number of words per minute, then multiply by the new time frame. For example, if Toni types 90 words in 1 minute, in 3 minutes she can type 90 x 3 = 270 words.

Front

What is the relationship between the number of apps purchased and the cost per app?

Back

The cost per app can be found by dividing the total cost by the number of apps. For example, if 3 apps cost $9, then each app costs $9/3 = $3.

Front

What does it mean to express a ratio in simplest form?

Back

Expressing a ratio in simplest form means reducing it to its lowest terms where both quantities are as small as possible while maintaining the same relationship.