问题
解答题
计算下面各题,怎样简便就怎样计算.
0.75×3.6×10.7
5.06×(2.08÷5.2)
4.8×0.7÷4.8
24.6÷2.5÷0.4.
答案
0.75×3.6×10.7,
=2.7×10.7,
=28.89;
5.06×(2.08÷5.2),
=5.06×0.4,
=2.024;
4.8×0.7÷4.8,
=4.8÷4.8×0.7,
=1×0.7,
=0.7;
24.6÷2.5÷0.4,
=24.6÷(2.5×0.4),
=24.6÷1
=24.6.