How to multiply (72 + 23) by (85-27)

(72+23)×(85-27)
= 95×(85-25-2)
= (100-5)×(60-2)
= 100×60 - 2×100 - 5×60 + 5×2
= 6000 - 200 - 300 + 10
= 6000 - 500 + 10
= 5510

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