Question

38.19−7.19×3.83用简便方法？

Answer 1

简便计算过程如下：

一、提取原式：38.19−7.19×3.83

二、计算过程：

      =38.19−（7×3.83+0.2×3.83-0.01×3.83）

      =38.19−（26.81+0.766-0.0383)

      =38.19−（27.576-0.0383)

      =38.19−27.5377

      =38.19−28+0.4633

      =10.19+0.4633

      =10.6523

三、计算结果：10.6523

Answer 2

38.19－7.9×3.83
=38.3－0.81－7.9×3.83
=3.83×10－7.9×3.83－0.81
=3.83×(10－7.9)－0.81
=3.83×(2+0.1)－0.81
=7.66+(3.83－0.81)
=7.66+3.02
=10.68

Answer 3

简便方法如下 36.4×9.8 =36.4×(10-0.2)=36.4×10-36.4×0.2 =364-7.28=356.72 希望能帮到你