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Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and use rate language in the context of a ratio relationship. For example, "This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar." "We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger."

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A Gigabyte of Mu...
Ratios
What's My Ratio?
Ratios
Ratios and Propo...
Comparing Mixtur...
Compare and orde...
$Thumb image for Compare and order decimals, fractions, percents - Figure This!$
Solve the Puzzle...
Cooking by Numbers
Proportional Rea...
The Right Ratio ...
Compare and orde...
$Thumb image for Compare and order decimals, fractions, percents - Figure This!$
Body Ratios
Airborn
Architects in Ac...
Learning About R...
PBS Mathline: th...
Exploring Rate/R...
Thinking blocks -
Proportional Rea...

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