口算.
5
16
÷
1
4
=
42×
2
3
=
91÷
13
14
=
7
10
÷
2
5
=
1
2
-
1
3
=
5
6
×
4
5
=
分析:根據(jù)分?jǐn)?shù)四則運(yùn)算的計(jì)算方法,計(jì)算得解.
解答:

解:
5
16
÷
1
4
=
5
4
42×
2
3
=28,
91÷
13
14
=98,
7
10
÷
2
5
=
7
4
,
1
2
-
1
3
=
1
6
,
5
6
×
4
5
=
2
3
點(diǎn)評(píng):此題考查分?jǐn)?shù)四則運(yùn)算的計(jì)算方法的靈活運(yùn)用,熟記方法,計(jì)算即可.
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