10.1×78用简便方法计算

Question

如题所述

Answer 1

10.1×78
=（10+0.1）×78
=10×78+0.1×78
=780+7.8
=787.8

Answer 2

       10.1×78

等于(10＋0.1)×78

等于10×78＋0.1×78

等于780＋7.8

等于787.8

Answer 3

10.1×78
= （10+0.1）X78
=10X78+0.1X78
=780+7.8
=787.8

Answer 4

101乘以两位数ab=abab 10.1*7.8=787.8