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72x27+72X72怎么巧算

(27+72)x72

204x27.5%+204x72.5% =204×(27.5%+72.5%) =204×1 =204

16x280+160x72 =160x(28+72) =160x100 =16000

360X72+36X280 =36×720+36×280 =36×(720+280) =36×1000 =36000

29x72+72x27-72 = 72 × ( 29 +27 -1 ) = 72 × ( 30+27 - 2) = 72 × ( 57 - 2 ) = 72 ×55 = 8×9 ×5×11 = (8 ×5 )× (9 × 11) = 40 × 99 = 40 × (100 -1 ) = 4000 - 40 = 3960

巧算36+27+36x72+36怎么做 36+27+36x72+36 =36×(27+72+1) =36×100 =3600

24*27 24*72 24 =24*27 24*72 24*1 =24*(27 72 1) =24*100 =2400

原式 =135x27+135x72+135x1 =135x(27+72+1) =135x(99+1) =135x100 =13500

您好,寒樱暖暖为你解答: 原式 =28×(82+15)+97×72 =28×97+97×72 =97×(28+72) =97×100 =9700 如果你认可我的回答, 请及时点击【采纳为满意回答】按钮,(或在客户端右上角评价点【满意】) 你的采纳, 是我前进的动力! 你的采纳也会给你带...

27×72+27×27+27 =27×(72+27+1) =27×100 =2700 你好,本题已解答,如果满意,请点右上角“采纳答案”。

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