Question

2.58*1.2-0.6+1.8用简便方法怎么算？

Answer 1

2.58*1.2-0.6+1.2+0.6
=2.58*1.2+1.2+(0.6-0.6)
=(2.58+1)*1.2+0
=3.58*1.2
=4.296

Answer 2

这题还要简便算法？用计算器啊。也可以先算后面，然后变成3.58X1.2，然后3.58+0.716，最后4.296

Answer 3

=2.58×1.2-(0.6-1.8)
=2.58×1.2+1.2
=3.58×1.2
=4.296

Answer 4

0.6×（4.3－1+3）