问题 解答题
计算下面各题.(能简算的要简算)
7
16
×
12
35
÷
3
20

[
7
8
-(
5
16
-
1
4
)]÷
26
27

7
4
×
5
6
+
7
4
÷6
5×4×(
1
5
×
3
4
答案

(1)

7
16
×
12
35
÷
3
20

=

3
20
÷
3
20

=1;

(2)[

7
8
-(
5
16
-
1
4
)]÷
26
27

=[

7
8
-
1
16
26
27

=

13
16
÷
26
27

=

27
32

(3)

7
4
×
5
6
+
7
4
÷6,

=

7
4
×
5
6
+
7
4
×
1
6

=

7
4
×(
5
6
+
1
6
),

=

7
4
×1,

=

7
4

(4)5×4×(

1
5
×
3
4
),

=(5×

1
5
)×(4×
3
4
),

=1×3,

=3.

单项选择题 A1型题
单项选择题