问题 解答题
直接写出得数:
6
7
-
2
7
=
0.12+
1
5
=
8
1
9
-8=
1
1
4
+2.1-1.25=
2-
5
8
=
1.2+
1
3
=
1+
1
2
+
1
3
=
3
1
3
+0.25-3
1
3
+0.25=
答案

6
7
-
2
7
=
4
7
0.12+
1
5
=0.32,
8
1
9
-8=
1
9
1
1
4
+2.1-1.25=2.1,
2-
5
8
=1
3
8
1.2+
1
3
=
23
15
1+
1
2
+
1
3
=1
5
6
3
1
3
+0.25-3
1
3
+0.25=0.5.

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