题目内容

直接写出得数.
2.89-0.98﹦
4.5×4×0.25﹦
1-3÷8﹦
1
5
-
1
8
=
1
100
=
4.8×
1
12
=
1.2万-0.8万=0.42-0.22=
1
4
:125
=
1
3
×
1
4
÷
1
3
×
1
4
=
2.89-0.98﹦1.91,4.5×4×0.25﹦4.5,
1-3÷8=0.625,
1
5
-
1
8
=
3
40
1
100
=200,
4.8×
1
12
=0.4,
1.2万-0.8万=0.4万,0.42-0.22=0.12,
1
4
:125
=0.002,
1
3
×
1
4
÷
1
3
×
1
4
=
1
16
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