题目内容

直接写出得数.
1000-458=
5.1-4.5=2.5-2.5×0.1=3.2×128×0.25=
1
2
+
1
3
=
1
5
+
4
5
=
1
2
+
1
2
×
1
3
=
1
2
×6×
1
3
=
1000-458=542,5.1-4.5=0.6,2.5-2.5×0.1=2.25,3.2×128×0.25=102.4,
1
2
+
1
3
=
5
6
1
5
+
4
5
=1,
1
2
+
1
2
×
1
3
=
2
3
1
2
×6×
1
3
=1.
故答案为:542,0.6,2.25,102.4,
5
6
,1,
2
3
,1.
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