Question

399✘88-99✘88用简便方法计算？

Answer 1

399 x88-99x88
=88x(399-99)
=88x300
=26400
以上就是简便计算方法。

Answer 2

399✘88-99✘88
=（399-99）*88
=300*88
=26400

Answer 3

399×88-99×88
=(399-99)×88
=300×88
=26400

Answer 4

399*88-99*88=(399-99)*88=300*88=26400

Answer 5

（399-99）×88＝300×88＝26400