Question

37.8x13.6-3.78x36怎么简算？

Answer 1

解:该题用简便方法计算，可将
37.8化成3.78X10，再提取相同的小数3.78即可:
37.8Ⅹ13.6一3.78X36
=3.78Ⅹ10X13.6一3.78Ⅹ36
=3.78X(136一36)
=3.78Ⅹ100
=378

Answer 2

可以将37.8看作是3.78x10,
算式就化简为3.78x10x13.6-3.78x36
提取3.78，原式=3.78x(10x13.6-36)=3.78x100=378

Answer 3

把37.8x13.6换成3.78x136然后用乘法结合律变成3.78x(136-36)再换算成3.78x100最后算得答案为378

Answer 4

37.8×13.6－3.78×36
=37.8×13.6－37.8×3.6
=37.8×（13.6－3.6）
=378

Answer 5

37.8×13.6-3.78×36
＝37.8×13.6-37.8×3.6
＝37.8×（13.6-3.6）
＝37.8×10
＝378