题目内容

直接写得数.
348-199=
8-
17
4
=
3.46+54=1-0.09=
910÷7=0.25×0.4=
5
9
=
36÷
4
7
=
4.2×100=
3
4
÷0.75=
2÷7+
5
7
=
4.5-4.5×
4
7
=
348-199=149,8-
17
4
=3.75,
3.46+54=57.46,1-0.09=0.91,
910÷7=130,0.25×0.4=0.1,
5
9
=
9
5
36÷
4
7
=63,
4.2×100=420,
3
4
÷0.75=1,
2÷7+
5
7
=1,
4.5-4.5×
4
7
=
27
14
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