2.58乘以9.9的递等式怎么写
问题描述:
2.58乘以9.9的递等式怎么写
答
=2.58×(10-0.1)
=2.58×10-2.58×0.1
=25.8-0.258
=25.542
答
=2.58x(10-0.1)
=2.58x10-2.58x0.1
=25.8-0.258
=25.542
答
2.58×9.9
=2.58×(10-0.1)
=2.58×10-2.58×0.1
=25.8-0.258
=25.542