Question

3.6×45+36×5.5的简便方法是？

有谁知道么？？？

Answer 1

简便算法是先把3.6（扩大10倍）和36化成同一个数，45（缩小10倍）随着变化为4.5。
或先把36（缩小10倍）和3.6化成同一个数，5.5（扩大10倍）则化成55.在提取公因式，计算即可。
1）3.6x45+36x5.5
=36x4.5+36x5.5
=36x（4.5+5.5）
=36x10
=360
2)3.6x45+36x5.5
=3.6x45+3.6x55
=3.6x(45+55)
=3.6x100
=360

Answer 2

解:简便运算如下:
3.6x45+36x5.5
=36x4.5+36x5.5
=36x(4.5+5.5)
=36x10
=360

Answer 3

Answer 4

将36变成:3.6*10
=3.6*45+3.6*10*5.5
=3.6*(45+55)
=360

Answer 5

3.6*45+36*5.5=3.6*4.5+3.6*55=3.6*（45+55）=360