Illustrative Math Grade 6 Unit 2 Review

Front

What is a ratio?

Back

A ratio is a relationship between two quantities, showing how many times one value contains or is contained within the other.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms of the ratio by their greatest common divisor (GCD).

Front

What is a double number line?

Back

A double number line is a visual representation that shows the relationship between two quantities, often used to illustrate ratios.

Front

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

Back

Divide the number of words by the number of minutes: 180 words ÷ 2 minutes = 90 words per minute.

Front

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

Back

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

Front

How do you find the total number of adults needed for a field trip if the ratio is 3 adults for every 18 students?

Back

Use the ratio to set up a proportion: (3 adults / 18 students) = (x adults / 72 students). Solve for x.

Front

What is the cost of one muffin if Mrs. Shelly paid $3 for 6 muffins?

Back

The cost of one muffin is $3 ÷ 6 muffins = $0.50 per muffin.

Front

How do you calculate the cost of 15 muffins if one muffin costs $0.50?

Back

Multiply the cost of one muffin by the number of muffins: $0.50 × 15 muffins = $7.50.

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions state that two ratios are equal.

Front

How can you express the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

The ratio of red apples to green apples is expressed as 4:3.