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36x25%x20+16x75怎么巧算

36x25-25x20+16x75 = 36x25-25x20+16x25X3 =36x25-25x20+25X48 =25X(36-20+48) =25X64 (=25X4X16)个人觉得这一步可要可不要·、 =1600

利用乘法分配律和特殊数的乘积进行简便计算。 (36+36×3)×25 =(36×1+36×3)×25 =36×(1+3)×25 =36×(4×25) =36×100 =3600

原式 =36x25-25x20+16x75 =(36-20)x25+16x75 =16x25+16x75 =16x(25+75) =16x100 =1600 或者 =36x25-25x20+16x3x25 =(36-20+48)x25 =64x25 =16x4x25 =16x100 =1600 供参考。

(36+36+36)x25 =108x25 =27×(4×25) =27x100 =2700

乘100,除以4。

27x24-3x36x25÷(100÷14) =648-108x25÷100x14 =648-2700÷100x14 =648-27x14 =648-378 =270

72000 ÷ (36 × 25) = 72000 ÷ (4 × 25 × 9) = 72000 ÷ 100 ÷ 9 = 720 ÷ 9 = 80

原式 =26x25+36x(15+60) =26x25+36x75 =26x25+(26+10)x75 =26x25+26x75+10x75 =26x(25+75)+750 =26x100+750 =2600+750 =3350

27000除36X25-7.5 =1867.5

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