早教吧 育儿知识 作业答案 考试题库 百科 知识分享

口算速算.112×24=34×217=37×27=78-34=110×34=35×0=

题目详情
口算速算.
1
12
×24 =
34×
2
17
=
3
7
×
2
7
=
7
8
-
3
4
=
1
10
×
3
4
=
3
5
×0 =
▼优质解答
答案和解析
1
12
×24 =2
34×
2
17
=4
3
7
×
2
7
=
6
49
7
8
-
3
4
=
1
8
1
10
×
3
4
=
3
40
3
5
×0 =0