9.07×34—90.7×0.4的简便运算怎么写?

Question

脱式计算

Answer 1

原式=9.07*（34-4）=9.04*30=271.2

Answer 2

9.07×34-90.7×0.4＝9.07×(34-4）＝9.07×30＝272.1

Answer 3

9.07×34—90.7×0.4
=90.7x3.4-90.7x0.4
=90.7x(3.4-0.4)
=90.7x3
=272.1本回答被网友采纳

Answer 4

9.07×34—90.7×0.4
=90.7×3.4—90.7×0.4
=90.7×（3.4—0.4）
=90.7×3
=272.1