问题 解答题
2
29
+
3
23
)×29×23=______,
8
13
÷7+
1
7
×
6
13
=______,
1.56÷[32×(1-
5
8
)+3.6]
=______.
答案

(1)(

2
29
+
3
23
)×29×23,

=

2
29
×29×23+
3
23
×29×23,

=46+87,

=133;

(2)

8
13
÷7+
1
7
×
6
13

=

8
13
×
1
7
+
1
7
×
6
13

=(

8
13
+
6
13
1
7

=

14
13
×
1
7

=

2
13

(3)1.56÷[32×(1-

5
8
)+3.6],

=1.56÷[32×

3
8
+3.6],

=1.56÷[12+3.6],

=1.56÷15.6,

=0.1.

单项选择题
单项选择题