问一个数学题(要简算)0.9+99x0.9===89.91
问题描述:
问一个数学题(要简算)
0.9+99x0.9
=
=
=89.91
答
0.9+99x0.9
=0.9*(99+1)
=0.9*100
=90
答
题目错了吧
答
0.9+99x0.9
=0.9x(1+99)
=0.9x100
=90
答
0.9+99x0.9
=0.9×(1+99)
=0.9×100
=90