计算下面各题.6760÷13+17×25 4.82-5.2÷0.8×0.6 (712?12)÷1124 (13+12)÷(2?23) (56?58×45)

计算下面各题.6760÷13+17×25 4.82-5.2÷0.8×0.6 (712?12)÷1124 (13+12)÷(2?23) (56?58×45)÷13 815×[56÷(79?13)].
2026年09月18日 22:33
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网友(1):

(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
)]

=