问题 解答题
计算,能简算的要简算.
2
7
×0.375÷
6
7
2-
6
13
÷
9
26
-
2
3
10
3
×
5
7
+
20
3
×
5
7
48×(
7
12
+
1
8
(0.75-
5
16
)×(
2
7
+
1
14
[1-(
3
4
-
3
8
)]÷
5
29
答案

(1)

2
7
×0.375÷
6
7

=

2
7
×0.375×
7
6

=0.125;

(2)2-

6
13
÷
9
26
-
2
3

=2-

4
3
-
2
3

=2-(

4
3
+
2
3
),

=2-2,

=0;

(3)

10
3
×
5
7
+
20
3
×
5
7

=(

10
3
+
20
3
)×
5
7

=10×

5
7

=

50
7

(4)48×(

7
12
+
1
8
),

=48×

7
12
+48×
1
8

=28+6,

=34;

(5)(0.75-

5
16
)×(
2
7
+
1
14
),

=

7
16
×
5
14

=

5
32

(6)[1-(

3
4
-
3
8
)]÷
5
29

=[1-

3
8
5
29

=

5
8
÷
5
29

=

29
8

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