Question

脱式计算．（能简算的要简算）0.034×0.5×0.6 &n...

脱式计算．（能简算的要简算）0.034×0.5×0.6 3.6÷1.2-0.5×5 （6.1-4.6）×0.8-1 5.4×3.08+3.08×3.6．

Answer 1

（1）0.034×0.5×0.6
=0.017×0.6
=0.0102；

（2）3.6÷1.2-0.5×5
=3-2.5
=0.5；

（3）（6.1-4.6）×0.8-1
=1.5×0.8-1
=1.2-1
=0.2；

（4）5.4×3.08+3.08×3.6
=（5.4+3.6）×3.08
=9×3.08
=27.72．