题目内容

口算:
12×0.6=4.5÷
1
2
=
1
5
-
1
6
=
28×20%=1.6×
3
4
=
3
7
=
36×
1
4
=
15÷
5
9
=
32=0.12=
18.84÷3.14=6.28÷3.14=
1
3
-
1
5
=
35×
1
7
=
1-4%=
7÷1.4=1÷5%=70%-60%=80×125%=2+53%=
12×0.6=7.2,4.5÷
1
2
=9,
1
5
-
1
6
=
1
30
28×20%=5.6,1.6×
3
4
=1.2,
3
7
=
7
3
36×
1
4
=9,
15÷
5
9
=27,
32=9,0.12=0.01,
18.84÷3.14=6,6.28÷3.14=2,
1
3
-
1
5
=
2
15
35×
1
7
=5,
1-4%=96%,
7÷1.4=5,1÷5%=20,70%-60%=10%,80×125%=100.
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