问题 解答题
用你喜欢的方法计算下面各题
4
15
×
3
8

36÷
4
17
12
13
×
7
24
4
7
×
5
9
+
3
7
×
5
9
1
5
+
2
3
)×15
18÷
3
5
÷
2
3
2-
6
13
÷
9
26
-
2
3
[1-(
1
4
+
3
8
)]÷
1
4
答案

4
15
×
3
8
=
1
10

②36÷

4
17
=36×
17
4
=153;

12
13
×
7
24
=
7
26

4
7
×
5
9
+
3
7
×
5
9

=(

4
7
+
3
7
)×
5
9

=1×

5
9

=

5
9

⑤(

1
5
+
2
3
)×15,

=

1
5
×15+
2
3
×15,

=3+10,

=13;

⑥18÷

3
5
÷
2
3

=18×

5
3
×
3
2

=45;

⑦2-

6
13
÷
9
26
-
2
3

=2-

6
13
×
26
9
-
2
3

=2-

4
3
-
2
3

=2-(

4
3
+
2
3
),

=2-2,

=0;

⑧[1-(

1
4
+
3
8
)]÷
1
4

=[1-

5
8
1
4

=

3
8
×4,

=

3
2

单项选择题 B1型题
单项选择题