问题 解答题
口算.
200×5=9×60=66÷2=59÷9=60÷2=53×2=
5×80=68÷4=
4
8
-
1
8
=
1
3
-
1
3
=
1-
5
6
=
11
15
-
4
15
=
答案

200×5=1000,9×60=540,66÷2=33,59÷9=6…5,60÷2=30,53×2=106,
5×80=400,68÷4=17,
4
8
-
1
8
=
3
8
1
3
-
1
3
=0,
1-
5
6
=
1
6
11
15
-
4
15
=
7
15

问答题
问答题 简答题