(89324-893.24)÷(44662-446.62)
=(100×893.24-893.24)÷(100×446.62-446.62)
=(99×893.24)÷(99×446.62)
=893.24÷446.62
=2
我的解题思路过程:
发现:89324是893.24的100倍,44662是446.62的100倍。于是,分别把893.24和446.62视作a与b
(100a-a)/(100b-b)
=99a/99b
=a/b
(89324-893.24)÷(44662-446.62)
=[89324×(100-1)]÷[44662×(100-1)]
=89324÷44662
=2
原式=(10*893.24-893.24)/(10*446.62-446.62)
=(9*893.24)/(9*446.62)
=893.24/446.62
=2