Question

3.6x1.9+3.6x8.1用简便算

Answer 1

3.6x1.9+3.6x8.1用简便算

3.6x1.9+3.6x8.1
=3.6×（1.9+8.1）
=3.6×10
=36

3.6x1.9+0.36x81的简便计算

3.6x1.9+0.36x81
=0.36x19+0.36x81
=0.36x（19+81）
=0.36x100
=36

4.9x3.6+6.4x3.6-3.6x1.3的简便算法

4.9x3.6+6.4x3.6-3.6x1.3
=3.6×（4.9+6.4-1.3）
=3.6×10
=36

26.4X3.6-3.6x16.3的简便算法

26.4X3.6-3.6x16.3
=（26.4-16.3）x3.6
=10.1x3.6
=（10+0.1）x3.6
=10x3.6+0.1x3.6
=36+0.036
=36.36

3.6x1.9+0.36x81的简便运算是什么

解：原式=3.6x1.9+3.6x8.1
=3.6x（1.9+8.1）
=3.6x10
=36
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1.9x3+36x8.1用简便算法

1.9x36+36x8.1用简便算法
=（1.9+8.1）x36
=10x36
=360

简便运算 3.6x1.9 36x0.81

3.6x1.9+36x0.81
=3.6x1.9+3.6x8.1
= 3.6x(1.9+8.1)
=3.6x10
=36

3.6×1.9 3.6×0.21简便算法

3.6×1.9 3.6×0.21简便算法
3.6×1.9 3.6×0.21
=3.6*(1.9+2.1)
=3.6*4
=14.4

3.6x1.8+5.3x1.8+1.8简便算法

3.6×1.8+5.3×1.8+1.8
=3.6×1.8+5.3×1.8+1.8×1
=1.8×（3.6+5.3+1）
=1.8×9.9
=17.82

[(4.2-3.6)x1.1]x21用简便算法

[(4.2-3.6)x1.1]x21
=0.6x1.1x21
=0.66x20+0.66x1
=13.2+0.66
=13.86