Question

3.6×0.59-0.36×0.9+36×0.005简便运算？

Answer 1

3.6×0.59-0.36×0.9+36×0.005
=3.6x0.59-3.6x0.09+3.6x0.05
=3.6(0.59-0.09+0.05)
=3.6x0.55
=(4-0.4)x0.55
=4x0.55-0.4x0.55
=2.2-0.22
=1.98

Answer 2

3.6×0.59-0.36×0.9+36×0.005
＝3.6×0.59-3.6÷10×0.9+3.6×10×0.005
＝3.6×0.59-3.6×0.9÷10+3.6×（10×0.005）
＝3.6×0.59-3.6×（0.9÷10）+3.6×0.05
＝3.6×0.59-3.6×0.09+3.6×0.05
＝3.6×（0.59-0.09+0.05）
＝3.6×（0.5+0.05）
＝3.6×0.5+3.6×0.05
＝1.8+0.18
＝1.98
运用乘法分配律，拆分 结合律，简便运算。
＝3.6×

Answer 3

原式=36x0.059-36x0.009+36x0.005=36（0.059-0.009+0.005）36x0.055=1.98