问题 解答题
直接写出得数.
299+198=
1236-998=
11
12
+
5
6
=
9
10
-
11
15
=
4
7
=
3
16
÷
1
3
=
(0.25+
3
4
)×4
=
1÷(2.1-2.09)=
0.9×99+0.9=2.4+
2
3
-
2
5
=
答案

299+198=497,1236-998=238,
11
12
+
5
6
=
7
4
9
10
-
11
15
=
1
6
4
7
=
16
7
3
16
÷
1
3
=
9
16
(0.25+
3
4
)×4
=4,
1÷(2.1-2.09)=100,
0.9×99+0.9=90,2.4+
2
3
-
2
5
=2
2
3
故答案为:497,238,
7
4
1
6
16
7
9
16
,4,100,90,2
2
3

单项选择题
单项选择题