Question

3.6×1.2÷3.6×1.2怎么简算？？ 7.36-5.4+1.74-1.6怎么简算？？ （1.72+1.72+1.72+1.72）÷3.2×2.5简便

急急急，快点啊
还有8×0.37+1.63÷0.125

Answer 1

3.6×1.2÷3.6×1.2可以直接相同的进行换算，即3.6÷3.6×1.2×1.2
后面也是，可以进行直接化成相同的在进行运算 例如体出个8，就是8x0.37+1.63x8
=8x(0.37+1.63）
=8x2=16

Answer 2

8x0.37+1.63x8
=8x(0.37+1.63）
=8x2=16
(0.125就是1/8，除以一个数就是乘他的倒数，所有变成1。63X8

追问

还有俩呢.6×1.2÷3.6×1.2怎么简算？？ 7.36-5.4+1.74-1.6怎么简算？？ （1.72+1.72+1.72+1.72）÷3.2×2.5简便

追答

3.6×1.2÷3.6×1.2
=3.6*3.6X1.2X1.2
=1.2X1.2
=1.44
（1.72+1.72+1.72+1.72）÷3.2×2.5=1.72X(4X2.5)*3.2=17.2*3.2=5.375

Answer 3

7.36-5.4+1.74-1.6
=(7.36+1.74)-(5.4+1.6)
=9.1-7
=2.1