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27.3x25x0.4简便计算

25X4=|0O 25x0.4=|0 10x27.3=273 |25X8=|000,25X4=|00应记住

先算2.5乘以0.4 再算7.3乘以 2.5乘以0.4的积

1.3×0.25×0.4 =1.3×0.1 =0.13

=0.25x0.4x17.3 =0.1x17.3 =1.73

0.8×(4.3×1.25) =4.3×(0.8×1.25) =4.3×1 =4.3

您好,寒樱暖暖为你解答: 原式 =0.25×0.4×6.3 =0.1×6.3 =0.63 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! 也会给你带去财富值的。 如有不明白, 可以追问,直到...

3.5x(0·7+0·3x4)的简便算法 =3.5x(0.7+1.2) =3.5x(2-0.1) =3.5x2-3.5x0.1 =7-0.35 =6.65

解:2 * 0 - (-1) - 3 * 4 = 0 + 1 - 12 = 1 - 12 = -11 经检验,2x0-(-1)-3x4 = -11符合题意

=3.83×4.56+3.83×4.56 =3.83×(4.56+4.56) =3.83×9.12 =3.83×(10-1+0.1+0.02) =3.83×10-3.83×1+3.83×0.1+3.83×0.02 =34.9296

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