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Unit rate word problem: which is a better buy? (7th grade math)
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I show you two ways to find out which bag of nuts is the better buy. We can calculate either the price per pound (unit price) - and this is the usual approach - OR we can calculate the price per 1/4 pound.
Since this problem involves quantities of 3/4 lb and 1/2 lb, the latter approach works fine and avoids a division by a fraction.
See more videos for 7th grade math:
Free, interactive activity about unit rates:
Math Mammoth grade 7 curriculum:
MM Rational Numbers -- a self-teaching worktext for 7th grade:
Since this problem involves quantities of 3/4 lb and 1/2 lb, the latter approach works fine and avoids a division by a fraction.
See more videos for 7th grade math:
Free, interactive activity about unit rates:
Math Mammoth grade 7 curriculum:
MM Rational Numbers -- a self-teaching worktext for 7th grade:
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