问题 解答题
直接写出计算结果.
637-363=0.5×
1
2
=
3.25×
4
13
=
31-3.1=
1
3
+
1
4
×
1
2
=
25+25×0=
4
3
×
3
4
=
2
9
÷
3
5
=
1
4
×
1
5
÷
1
4
×
1
5
=
1-
1
2
-
1
3
=
答案

637-363=274,0.5×
1
2
=
1
4
3.25×
4
13
=1,
31-3.1=27.9,
1
3
+
1
4
×
1
2
=
11
24
25+25×0=25,
4
3
×
3
4
=1,
2
9
÷
3
5
=
10
27
1
4
×
1
5
÷
1
4
×
1
5
=
1
25
1-
1
2
-
1
3
=
1
6

单项选择题 A1/A2型题
单项选择题