11
15
×
25
44
25
39
×
13
50
10
9
×6×0
180÷
9
10
7
11
÷14
0.8÷
13
16
分析:本題根據(jù)分?jǐn)?shù)乘示與除法的運(yùn)算法則計(jì)算即可.
解答:解:
11
15
×
25
44
=
5
12
,
25
39
×
13
50
=
1
6
,
10
9
×6×0
=0,
180÷
9
10
=200,
7
11
÷14
=
1
22
,
0.8÷
13
16
=
64
65
點(diǎn)評(píng):完成分?jǐn)?shù)乘法與除法算式時(shí)要細(xì)心,注意約分.
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