问题 解答题
脱式计算.(怎么简便就怎么算.)
5
6
-(
1
3
+
1
4
)

3
8
-
3
10
×
5
6

8
3
-
3
5

3
8
÷
1
10
×
3
5

24×(
1
4
+
1
6
-
1
3
)

4
5
×
7
9
+
1
5
×
7
9
答案

(1)

5
6
-(
1
3
+
1
4
),

=

5
6
-(
4
12
+
3
12
),

=

5
6
-
7
12

=

10
12
-
7
12

=

3
12

=

1
4

(2)

3
8
-
3
10
×
5
6

=

3
8
-
1
4

=

3
8
-
2
8

=

1
8

(3)4÷

8
3
-
3
5

=4×

3
8
-
3
5

=

3
2
-
3
5

=

15
10
-
6
10

=

9
10

(4)

3
8
÷
1
10
×
3
5

=

3
8
×10×
3
5

=

9
4

=2

1
4

(5)24×(

1
4
+
1
6
-
1
3
),

=24×

1
4
+24×
1
6
-24×
1
3

=6+4-8,

=2;

(6)

4
5
×
7
9
+
1
5
×
7
9

=

7
9
×(
4
5
+
1
5
),

=

7
9
×1,

=

7
9

单项选择题
单项选择题