问题 解答题
计算下面各题(能简便的简便)
3
4
+
8
9
)×36
8
15
×
1
3
×
5
8

7
15
×
5
3
÷
10
9

23-
8
9
×
3
8
÷
1
27

3
4
÷(
1
2
-0.25)×
1
3

4
7
×
1
5
+
3
7
×
1
5
)÷
8
15
答案

(1)(

3
4
+
8
9
)×36

=

3
4
×36+
8
9
×36

=27+32

=59;

(2)

8
15
×
1
3
×
5
8
=
1
9

(3)

7
15
×
5
3
÷
10
9

=

7
15
×
5
3
×
9
10

=

7
10

(4)23-

8
9
×
3
8
÷
1
27

=23-

8
9
×
3
8
×27

=23-9

=14;

(5)

3
4
÷(
1
2
-0.25)×
1
3

=

3
4
÷(
1
2
-
1
4
)×
1
3

=

3
4
÷
1
4
×
1
3

=

3
4
×4×
1
3

=1;

(6)(

4
7
×
1
5
+
3
7
×
1
5
)÷
8
15

=(

4
7
+
3
7
)×
1
5
×
15
8

=1×

1
5
×
15
8

=

3
8

单项选择题
填空题