36×70+7×640的简便脱式

Question

如题所述

Answer 1

脱式计算，希望能帮到你

Answer 2

980除以七十脱式简便计算: 解： 980÷70 ＝980÷（10x7） =980÷10÷7 =98÷7 =14

Answer 3

36X70+7X640
=70X(36+64)
=70X100
=7000

Answer 4

=36×70+70×64
=(36+64)×70
=100×70
=7000