Question

80×99-27的简便运算？

Answer 1

数学简便运算题很容易掌握，就本道题来说，把99看成100-1就好算了，80x100-80x1-27等于8000-53等于7947。要细心认真看，别算错你一定行

Answer 2

简便计算
80×99-27
=80x（100-1）-27
=80x100-80-27
=8000-（80+27）
=8000-107
=7893

Answer 3

80×99-27
=80x(100-1)-27
=8000-80-27
=8000-107
=7893

Answer 4

原式＝80×（100-1）-27
＝80×100-80-27
＝8000-107
＝8893

Answer 5

80x99-27
=80x100-80-27
=8000-(80+20)-7
=8000-100-7
=7900-7
=7893