CHALLENGE 36: Multiplying a 2-digit number by a 2-digit number Suggested Strategy: 1. Partition the numbers into tens and units 27 x 14 = 54 x 36 = 18 x 42 = 82 x 34 = 65 x 42 = 56 x 73 = 57 x 26 = 73 x 24 = 26 x 66 = 75 x 37 = 36 x 71 = 81 x 36 = 26 x 45 = 65 x 38 = 52 x 47 = 16 x 42 = 72 x 53 = 22 x 83 = 29 x 62 = 47 x 82 = 55 x 45 = 73 x 27 = 52 x 52 = 29 x 93 = 27 x 73 = 32 x 75 = 64 x 16 = 36 x 28 = 45 x 47 = 78 x 27 = 38 x 35 = 54 x 63 = 37 x 16 = 29 x 32 = 48 x 51 = 42 x 73 = 23 x 84 = 67 x 22 = 78 x 32 = 61 x 26 = 32 x 35 = 18 x 56 = 75 x 27 = 46 x 34 = 37 x 73 = 34 x 28 = 27 x 56 = 58 x 24 =
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