Question 23: Apply properties of addition and multiplication to quickly calculate: 72 + 69 + 128

72 + 69 + 128 = (72 + 128) + 69 = 200 + 69 = 269

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Question 23: Apply properties of addition and multiplication to quickly calculate: 72 + 69 + 128

72 + 69 + 128 = (72 + 128) + 69 = 200 + 69 = 269

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