问题
解答题
计算下面各题,能简算的要简算.
(16.8+1.47)÷0.7×1.2
3.84×1.25×8
10.5÷[(0.55-0.48)×0.1].
答案
(1)(16.8+1.47)÷0.7×1.2
=18.27÷0.7×1.2
=26.1×1.2
=31.32;
(2)3.84×1.25×8
=3.84×(1.25×8)
=3.84×10
=38.4;
(3)10.5÷[(0.55-0.48)×0.1]
=10.5÷(0.07×0.1)
=10.5÷0.007
=3500.