直接寫得數(shù).
1
3
×0
=
1
4
×
2
5
=
5
6
×12
=
7
12
×
3
14
=
5
8
×
2
15
=
8
9
÷
8
3
=
3
10
÷
10
3
=
1
3
÷
1
12
=
4
7
÷12
=
分析:根據(jù)分?jǐn)?shù)乘法、除法的計(jì)算法則,直接進(jìn)行口算即可.
解答:解:
1
3
×0
=0;
1
4
×
2
5
=
1
10
;
5
6
×12
=10;
7
12
×
3
14
=
1
8
;
5
8
×
2
15
=
1
12
8
9
÷
8
3
=
1
3
;
3
10
÷
10
3
=
9
100
;
1
3
÷
1
12
=4;
4
7
÷12
=
1
21
點(diǎn)評(píng):此題考查的目的是理解掌握小數(shù)乘法、除法的計(jì)算法則,并且能夠正確熟練地進(jìn)行口算,提高口算能力.
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