问题 解答题
简算
16.45-(4.45+
3
7
)

36×(
2
3
+
3
4
-0.5)

4
7
×0.75+
3
4
÷
7
3
-
3
4
答案

(1)16.45-(4.45+

3
7
),

=16.45-4.45-

3
7

=12-

3
7

=11

4
7

(2)36×(

2
3
+
3
4
-0.5),

=36×

2
3
+36×
3
4
+36×0.5,

=24+27+18,

=69;

(3)

4
7
×0.75+
3
4
÷
7
3
-
3
4

=(

4
7
+
3
7
-1)×
3
4

=0×

3
4

=0.

单项选择题
单项选择题