Ratios

The first step in writing ratios is to identify

• in numbers what is being compared
• in words what is being compare
• the pictures
• how many stars are in space

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How many different ways can you write a ratio

• 1
• 2
• 3
• 4

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The most common way that ratios are expressed in math is in what form?

• using a ":"
• fraction form
• in pictures
• using the word "to"

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When determining if two ratios are equivalent you can

• cross multiply the numbers to see if you get the same answer
• ask a neighbor
• skip the problem
• guess on the answer

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Jane is comparing the number of boys in the class to the number of  girls.  There are 15 boys and 10 girls.  What is the correct way to express this in ratio form?

• 5/10 ; 5:10; 5 to 10
• 10/15;10 to 15; or 10 to 15
• 15 boys/10 girls; 15 boys:10 girls; 15 boys to 10 girls

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You must ALWAYS label your answers when solving ratios

• true
• false

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What is the ratio of stars to circles?

• stars/circles = 11/5
• stars/circles = 5/11
• circles/stars = 5/11

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What is the ratio of 14 hats to 20 accessories?

• hats: accessories = 14:20
• accessories:hats = 20:14
• hats: accessories = 20:14
• Accessories : hats = 14:20

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What is the ratio of the green apples to all of the apples?

• 4 green to 3 red apples
• 3 green to 4 red apples
• 3 green to 7 apples
• 7 apples to 3 green 

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What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

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