问题
解答题
下面的计算对吗?请把错误的改过来.
1.25×(8+0.8)
=1.25×8+0.8
=10+0.8
=10.8______
3.6+2.4×0.06
=6×0.06
=O.36______.
答案
(1)×;
改正:
1.25×(8+0.8),
=1.25×8+1.25×0.8,
=10+1,
=11;
(2)×;
改正:
3.6+2.4×0.06,
=3.6+0.144,
=3.744.