题目内容

脱式计算.
6760÷13+17×254.82-5.2÷0.8×0.635÷
7
8
×(1-
3
8
9
5
÷[(
1
2
-
1
3
)×
4
15
].
(1)6760÷13+17×25,
=520+425,
=945;

(2)4.82-5.2÷0.8×0.6,
=4.82-3.9,
=0.92;

(3)35÷
7
8
×(1-
3
8
),
=35×
8
7
×
5
8

=25;

(4)
9
5
÷[(
1
2
-
1
3
)×
4
15
],
=
9
5
÷[
1
6
×
4
15
],
=
9
5
÷
2
45

=
9
5
×
45
2

=
81
2
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