问题 解答题
直接算出得数
3
5
+
1
5
=
1-
3
5
=
7
9
-
2
9
=
2
3
+
1
4
=
10-9.12=0.7÷3.5=0.8×125=
7
8
+
1
8
=
答案

3
5
+
1
5
=
4
5
; 1-
3
5
=
2
5
7
9
-
2
9
=
5
9
2
3
+
1
4
=
11
12

10-9.12=0.88;0.7÷3.5=0.2;0.8×125=100;

7
8
+
1
8
=1.

故答案为:

4
5
2
5
5
9
11
12
,0.88,0.2,100,1.

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