Question

3.5×1.2-3.6用简便计算怎么写？

Answer 1

3.5×1.2-3.6
=3.5x2x0.6-3.6
=7x0.6-3.6
=4.2-3.6
=0.6
望采纳，谢谢

Answer 2

这道题可以把3.6分解成3.5+0.1，然后利用乘法分配率的逆运算来实现简算，具体过程如下:
3.5×1.2-3.6
=3.5×1.2-（3.5+0.1）
=3.5×1.2-3.5-0.1
=3.5×（1.2-1）-0.1
=3.5×0.2-0.1
=0.7-0.1
=0.6

Answer 3

简便算法如下：
法一：
3.5X1.2-3.6
=（3.6-0.1）X1.2-3.6
=3.6×1.2-0.1X1.2-3.6
=3.6X（1.2-1）-0.1×1.2
=3.6X0.2-0.6X0.2
=0.2X(3.6-0.6)
=0.2X3
=0.6
法二：
3.5X1.2-3.6
=3.5X1.2-3X1.2
=1.2X(3.5-3)
=1.2X0.5
=0.6

Answer 4

解:已知3.5×1.2-3.6可以转化为0.5×1.2+3×1.2-3.6，由此可得结果为0.6。因此，3.5×1.2-3.6的简便计算为0.5×1.2＋3×1.2-3.6＝0.6+3.6-3.6＝0.6。

Answer 5

3.5X1.2-3.6
=（3.6-0.1）X1.2-3.6
=3.6×1.2-0.1X1.2-3.6
=3.6X（1.2-1）-0.1×1.2
=3.6X0.2-0.1X1.2
=3.6×0.1十3.6×0.1-0.1×1.2
=（3.6+3.6-1.2）X0.1
=6×0.1
=0.6