Question

6.5×4+3点5÷0.25的简便运算

Answer 1

这道题考查的是小数的简便计算，我们可以把0.25换算成1/4，除以一个数等于乘这个数的倒数，所以原式
=6.5×4+3.5×4
=（6.5+3.5）×4
=10×4
=40

Answer 2

6.5＊4+3.5÷0.25
=6.5＊4+3.5＊100/25
=6.5＊4+3.5＊4
=4＊(6.5+3.5)
=4＊10
=40

Answer 3

从左往右依次计算，6.5×4+3.5÷0.25＝26+3.5÷0.25＝26+14＝40。

Answer 4

6.5×4+3.5÷0.25
=6.5×4+3.5x4
=(6.5+3.5)x4
=10x4
=40

Answer 5

6.5╳4+3.5÷0.25
=6.5ⅹ4+3.5╳4
=4╳(6.5+3.5)
=4x10
=40