问题 解答题
计算下面各题(能简算的要简算):
7
16
-
1
4
)÷
1
3
101×821.56÷0.3×0.16125×0.32×25.
答案

(1)(

7
16
-
1
4
)÷
1
3

=

3
16
÷
1
3

=

9
16

(2)101×82,

=(100+1)×82,

=100×82+1×82,

=8200+82,

=8282;

(3)1.56÷0.3×0.16,

=5.2×0.16,

=0.832;

(4)125×0.32×25,

=125×0.8×0.4×25,

=(125×0.8)×(0.4×25),

=100×10,

=1000.

单项选择题
单项选择题