问题 解答题
计算下面各题.
6760÷13+17×25
4.82-5.2÷0.8×0.6(
7
12
-
1
2
11
24
(
1
3
+
1
2
)÷(2-
2
3
)
(
5
6
-
5
8
×
4
5
1
3
8
15
×[
5
6
÷(
7
9
-
1
3
)]
答案

(1)6760÷13+17×25,

=520+425,

=945;

(2)4.82-5.2÷0.8×0.6,

=4.82-6.5×0.6,

=4.82-3.9,

=0.92;

(3)(

7
12
-
1
2
11
24

=(

7
12
-
1
2
)×
24
11

=

7
12
×
24
11
-
1
2
×
24
11

=

14
11
-
12
11

=

2
11

(4)(

1
3
+
1
2
)÷(2-
2
3
),

=

5
6
÷1
1
3

=

5
8

(5)(

5
6
-
5
8
×
4
5
÷
1
3

=(

5
6
-
1
2
÷
1
3

=

1
3
÷
1
3

=1;

(6)

8
15
×[
5
6
÷(
7
9
-
1
3
)],

=

8
15
×(
5
6
÷
4
9
),

=

8
15
×
15
8

=1.

不定项选择
判断题