Question

2.43乘6.12加0.388乘24点三的简便运算？

Answer 1

解:2.43×6.12+0.388×24.3=2.43×6.12+0.388×10×2.43=2.43×6.12+3.88×2.43=2.43×(6.12+3.88)=2.43×10=24.3

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Answer 2

2.43乘6.12加0.388乘24点三的简便运算？

解：根据已知条件，列式进行计算：    

2.43x6.12+0.388x24.3

=2.43x6.12+3.88x2.43

=2.43x（6.12+3.88）

=2.43x10

=24.3

Answer 3

2.43×6.12+0.388×24.3
=24.3×0.612+24.3×0.388
=2.43×（0.612+0.388）
=24.3×1
=24.3
也可以这样算:
2.43×6.12+0.388×24.3
=6.12×2.43+3.88×2.43
=（6.12+3.88）×2.43
=10×2.43
=24.3

Answer 4

2.43乘6.12加0.388乘24点三 用乘法分配律简算。

2.43X6.12+0.388X24.3
=2.43X6.12+3.88X2.43
=24.3X(6.12+3.88)
=24.3X10
=243

Answer 5

原式=2.43×6.12+0.388×24.3，可以把0.388拆成3.88×0.1，则原式=2.43×6.12+3.88×0.1×24.3=2.43×6.12+3.88×（0.1×24.3）=2.43×6.12+3.88×2.43=2.43×（6.12+3.88）=2.43×10=24.3。