题目内容

口算我最棒.
3×0.23=
1
12
-
1
12
×1=
______:
2
5
=
2
3
4
25
×99+
4
25
=
3.14×0.32=10+10÷
2
5
=
25分:
1
4
时=
14×
5
7
÷14×
5
7
=
3×0.23=0.024,
1
12
-
1
12
×1=11
11
12
4
15
2
5
=
2
3
4
25
×99+
4
25
=16,
3.14×0.32=0.2826,10+10÷
2
5
=35,
25分:
1
4
时=
5
3
14×
5
7
÷14×
5
7
=
25
49
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