题目内容

脱式计算
5
11
×[(
2
5
+
1
3
)÷
5
6
]
914-316÷79×208
(1-
1
5
÷
1
3
)×
15
16

5
6
÷[1-(
3
4
+
1
12
)].
(1)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×[
11
15
÷
5
6
],
=
5
11
×[
11
15
×
6
5
],
=
5
11
×
11
15
×
6
5

=
2
5


(2)914-316÷79×208,
=914-4×208,
=914-832,
=82;

(3)(1-
1
5
÷
1
3
)×
15
16

=(1-
1
5
×3)×
15
16

=(1-
3
5
)×
15
16

=
2
5
×
15
16

=
3
8


(4)
5
6
÷[1-(
3
4
+
1
12
)],
=
5
6
÷[1-
5
6
],
=
5
6
÷
1
6

=
5
6
×6,
=5.
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