问题 解答题
用合适的方法计算下列各题.
6
17
×
1
2
×51
1÷(
1
4
÷
1
5
5
8
×17+
3
8
×17
4
7
×
7
12
÷
4
9
36×(3-
2
9
答案

(1)

6
17
×
1
2
×51,

=

6
17
×51×
1
2

=18×

1
2

=9;

(2)1÷(

1
4
÷
1
5
),

=1÷

5
4

=

4
5

(3)

5
8
×17+
3
8
×17,

=(

5
8
+
3
8
)×17,

=1×17,

=17;

(4)

4
7
×
7
12
÷
4
9

=

1
3
×
9
4

=

3
4

(5)36×(3-

2
9
),

=36×3-36×

2
9

=108-8,

=100.

单项选择题
单项选择题 A1/A2型题