(1)4.05-2.86-0.14
(2)75×60%+24×
+0 6 (3)45×
.解:(1)4.05-2.86-0.14,=4.05-(2.86+0.14),
=4.05-3,
=1.05;
(2)75×60%+24×
+0 6,=(75+24+1)×0.6,
=100×0.6,
=60;
(3)45×
,=(46-1)×
,=46×
-1×
,=3-
,=
.分析:(1)依据减法性质解答,连续减去两个数等于减去两个数的和;
(2)把算式中的百分数,分数化为小数,再化0.6=0.6×1运用乘法分配律解答;
(3)化45=46-1,再运用乘法分配律解答.
点评:解答本题时要注意分析式中数据,运用合适的简便方法计算.