Pre-Algebra Quiz
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MATH PRACTICES & PROBLEM SOLVING
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Marcus notices that 47×53=249147 \times 53 = 2491 and 46×54=248446 \times 54 = 2484. He wonders if there's a pattern when multiplying two numbers that are equidistant from 50. If aa and bb are two numbers such that a+b=100a + b = 100 and a<ba < b, which expression represents a×ba \times b in terms of how far each number is from 50?
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