Multiply 2 Numbers Equidistant from a Square You Know

Answers to the Practice Problems:
47 x 53 = (50-3)(50+3) = 50^2 - 3^2 = 2500 - 9 = 2491
59 x 61 = (60-1)(60+1) = 60^2 = 1^2 = 3600 - 1 = 3599
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