Additive and Multiplicative Comparison

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What is Additive Comparison?

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Additive Comparison is when we compare two quantities by adding or subtracting. It answers questions like 'how many more' or 'how much in total.'

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CCSS.1.OA.A.1

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What is Multiplicative Comparison?

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Multiplicative Comparison is when we compare two quantities by multiplying. It answers questions like 'how many times more' or 'how many groups of.'

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CCSS.4.OA.A.2

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If Sally sailed for 10 hours in June and 5 times as many hours in July, how many hours did she sail in July?

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50 hours

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CCSS.4.OA.A.2

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Jacob has 4 times as many pages of homework as his brother who has 2 pages. How many pages does Jacob have?

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8 pages

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CCSS.4.OA.A.2

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When you see the phrase 'more than' in a word problem, what type of comparison is it?

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Additive Comparison

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CCSS.3.OA.D.8

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The cost of a soda is $5. If popcorn costs three times as much, how much does the popcorn cost?

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$15

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CCSS.4.OA.A.2

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What does the phrase 'how many more' indicate in a problem?

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It indicates Additive Comparison.

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CCSS.1.OA.A.1

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If a car travels 60 miles in 1 hour, how far will it travel in 3 hours?

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180 miles (Multiplicative Comparison: 60 miles x 3 hours).

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CCSS.4.OA.A.2

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If a box has 5 apples and you add 3 more, how many apples are in the box now?

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8 apples (Additive Comparison).

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CCSS.1.OA.A.1

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What is the result of 4 times 6?

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24 (Multiplicative Comparison).

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CCSS.4.OA.A.1