Fifth Grade Challenging Math

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5-25)  Answers

       a) 6565,    b) 7650

a)   65 x 101 = 65 x (100 + 1) = 65 x 100 + 65 x 1 = 6500 + 65 = 6565

b)   75 x 102 = 65 x (100 + 2) = 75 x 100 + 75 x 2 = 7500 + 150 = 7650