2020×2019/5怎么简便计算？

Question

如题所述

Answer 1

你题目中2019/5中的分子和分母写反了，应该是5/2019
2020×5/2019
=（2019+1）×5/2019
=2019×5/2019+1×5/2019
=5+5/2019
=5又5/2019

Answer 2

▲2020×2019/5
【用5约分】
=404x2019
=(400+4)x(2020-1)
=808000+8080-400-4
=816080-400-4
=815680-4
=815676

Answer 3

解，
2020*2019/5
=2020x（2020-1）/5
=404x2020-404
=（400+4）x2020-404
=808000+8080-404
=808000+7676
=815676

Answer 4

2020×2019／5
＝404×2019
＝815676

Answer 5

2020×2019/5怎么简便计算？
= 2020 /5 ×2019
=404 ×2019
=815676