Toán Lớp 6: tính nhanh 24x19+29x24+18x24+24x33+24

24x19+29x24+18x24+24x33+24 =24.(19+29+18+33)+24 =2376+24 =2400

24 xx 19 + 29 xx 24 + 18 xx 24 + 24 xx 33 + 24 = 24 xx ( 19 + 29 + 18 + 33 + 1 ) = 24 xx 100 = 2400

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Toán Lớp 6: tính nhanh 24×19+29×24+18×24+24×33+24

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