问题 解答题
26+39=7.8-3.6=1.2+0.9=24×3=
52×0.4=21.7÷0.7=
1
3
-
1
6
=
1
4
+
3
8
=
答案

26+39=65,7.8-3.6=4.2,1.2+0.9=2.1,24×3=72,
52×0.4=20.8,21.7÷0.7=31,
1
3
-
1
6
=
1
6
1
4
+
3
8
=
5
8

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