问题 解答题
看谁算得又对又快.
1
2
-
1
3
=
1
6
+
5
12
=
3
4
-
1
2
=
3÷7=
5
8
+
5
16
=
3
4
-
2
3
=
0.8×1.5=
1
4
+0.3=
答案

1
2
-
1
3
=
1
6
1
6
+
5
12
=
7
12
3
4
-
1
2
=
1
4
3÷7=
3
7
5
8
+
5
16
=
15
16
3
4
-
2
3
=
1
12
0.8×1.5=1.2,
1
4
+0.3=0.55.

单项选择题
单项选择题