题目内容

2÷3=5-
1
3
=
1
2
÷6=
3
5
÷
4
7
=
2.5×20%=16÷40%=
3
14
×
7
15
=
3.05×6.9≈
(3-
5
6
)×18=
1
31
×62÷
1
2
=
2÷3=
2
3
5-
1
3
=4
2
3
1
2
÷6=
1
12
3
5
÷
4
7
=
21
20
2.5×20%=0.5,16÷40%=40,
3
14
×
7
15
=
1
10
3.05×6.9≈21,
(3-
5
6
)×18=39,
1
31
×62÷
1
2
=4.
故答案为:
2
3
,4
2
3
1
12
21
20
,0.5,40,
1
10
,21,39,4.
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