问题 解答题
直接写出下面各题的得数.
55÷
11
10
=
1
6
+
3
8
=
1-
2
9
+
7
9
=
(
1
7
+
1
9
)×63
=
3
4
×
5
6
=
0.42-0.32=
5.47-1.8-3.2=0.25×8.5×4=
答案

55÷

11
10
=50,
1
6
+
3
8
=
13
24
1-
2
9
+
7
9
=
14
9
1
7
+
1
9
)×63=16,
3
4
×
5
6
=
5
8
0.42-0.32=0.07,
5.47-1.8-3.2=0.47,0.25×8.5×4=8.5.

单项选择题
单项选择题