Question

3.8X0.25 0.25的脱式计算？

Answer 1

以后同学脱式计算的话可以看一下前面后面都有一个0.25所以可以把0.25提出来这样子就是3.8+0点一等于3.9。用0.25×3点九都等于0.25×4-0点二五×0点一等于1-0点025等于零点975

Answer 2

解:3.8X0.25十0.25

=(3.8十1)X0.25

=4.8x0.25

=4x0.25十0.8x0.25

=1十0.2

=1.2。

Answer 3

3.8╳0.25+0.25
=3.8╳0.25+1╳0.25
=(3.8+1)╳0.25
=4.8╳0.25
=1.2╳4╳0.25
=1.2╳(4╳0.25)
=1.2╳1
=1.2

Answer 4

3.8×0.25+0.25
=(3.8+1)×0.25
=4.8×0.25
=1.2×(4×0.25)
=1.2×1
=1.2

Answer 5

3.8X0.25=0.95
脱式计算3.8/4=0.95