来自吕达仁的问题
【脱式计算:0.2×0.6×0.5×4;(7.5-2.3×0.4)÷0.01.】
脱式计算:
0.2×0.6×0.5×4;
(7.5-2.3×0.4)÷0.01.
1回答
2020-07-15 21:34
【脱式计算:0.2×0.6×0.5×4;(7.5-2.3×0.4)÷0.01.】
脱式计算:
0.2×0.6×0.5×4;
(7.5-2.3×0.4)÷0.01.
(1)0.2×0.6×0.5×4
=(0.2×0.5)×(0.6×0.4)
=0.1×0.24
=0.024
(2)(7.5-2.3×0.4)÷0.01
=(7.5-0.92)÷0.01
=6.58÷0.01
=658