Question

四点37×1点九用简便方法怎么算？

Answer 1

4.37×1.9
=4.37×(2-0.1)
=8.74-0.437
=8.303

Answer 2

4.37x1.9
=4.37x(2-0.1)
=4.37x2-4.37x0.1
=8.74-0.437
=8.303

方法:
构造后利用乘法分配律实现简便计算。

追答

4.37x1.9
=4.37x(2-0.1)
=4.37x2-4.37x0.1
=8.74-0.437
=8.303

方法:
构造后利用乘法分配律实现简便计算。

Answer 3

4.37×1.9
＝4.37×(2-0.1)
＝4.37×2－4.37×0.1
＝8.74－0.437
＝8.303

Answer 4

4.37×1.9
＝4.37×(2-0.1)
=8.74-0.437
＝8.303