Question

这道数学题怎么算？

87×88/86 脱式计算 简算

Answer 1

=(86+1)×88/86
=86×88/86 +1×88/86
=88又88/86
=89又2/86

Answer 2

87×88/86
=(88-1)x(88/86)
=88x(88/86)-88/86
=86-88/86

Answer 3

ecnu3663同学的是对的

Answer 4

87*88/86=(86+1)*(86+2)/86=(86^2+3*86+2)/86=89+2/86

Answer 5

=(86+1)×88/86
=86×88/86 +1×88/86
下面你应该会了吧

Answer 6

脱式？？？？？