5-1 Ratios

A ratio can be written with a colon or 

• a multiplication sign
• a semi colon
• the word "to"
• an equal sign

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is a Ratio?

• Is a comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2:5
• 5:3
• 3:5
• 5:2

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the missing number in the ratio table?

• 21
• 24
• 27
• 25

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CCSS.6.RP.A.1

CCSS.6.RP.A.3

When writing a ratio, the order doesn't matter as long as the ratio is in lowest terms.

• True

• False

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

There are 5 lions. Each has 4 paws and 2 ears. Write a ratio of ears to paws in simplest form. 

• 1:2
• 2:4
• 4:2
• 2:1

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

I have 4 scary movies, 5 funny movies, 2 romantic movies and 3 animated movies. I have the ratio of 1:7 What could I be comparing? 

• Romantic movies to all movies
• Animated movies to scary movies
• funny movies to all movies
• all movies to romantic movies

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

The pet shop has 2 dogs, 4 cats, and 5 hamsters. What is the ratio of dogs to all pets?

• 2:4
• 2:5
• 2:11
• 11:2

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

There are 12 boys and 15 girls in an afterschool club. Which ratio below DOES NOT represent the ratio of girls to boys?

• 12:15
• 15:12
• 5:4
• 45:36

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

A cat had a litter of 12 kittens. Eight of the kittens were grey. The rest were orange. What is the ratio of orange kittens to grey kittens?

• 12 to 8

• 8 to 12

• 4 to 8

• 2 to 1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2