Question

28.6×10.1-2.86用简便方法计算在8点之前回答有100分

快快gogo

Answer 1

28.6×10.1-2.86

=28.6×10.1-28.6x0.1

=28.6×(10.1-0.1)

=28.6x10

=286

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

~祝你学习进步，更上一层楼！

~如果你认可我的回答，请及时点击【采纳为满意回答】按钮~

~手机提问者在客户端上评价点“采纳”即可~~

~你的采纳是我前进的动力~~~

~如还有新的问题，请另外向我求助，答题不易，敬请谅解~~

Answer 2

28.6×10.1-28.6×0.1
=28.6×(10.1-0.1)
=28.6×10
=286

Answer 3

28.6×10.1-2.86
=2.86×101-2.86
=2.86×（101-1）
=2.86×100
=286

Answer 4

28.6×10.1-2.86 = 28.6×(10.1-0.1) = 28.6*10 = 286