SME
Grade 5 Math · Problem type
Multiplication as scaling
Use this for “Decide which is greater without calculating.”
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Is the product less than 12, equal to 12, or more than 12?
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Assumptions
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Times a fraction less than 1 makes a number smaller.
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Times 1, or a fraction equal to 1, keeps it the same.
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Times a number more than 1 makes it bigger.
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Area of a rectangle with fractional sides
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Divide whole numbers and unit fractions
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