mixed-operations/equations/missing-variable · 套题 21
20 problems
姓名:
班级:
日期:
1
9 - 2
=
2
10 × 1
=
3
9 ÷ 9
=
4
2 + 3
=
5
7 - 4
=
6
4 × 5
=
7
5 ÷ 5
=
8
6 + 7
=
9
5 - 2
=
10
8 × 9
=
11
6 - 3
=
12
10 + 1
=
13
4 - 1
=
14
2 × 3
=
15
10 - 1
=
16
6 × 7
=
17
8 + 9
=
18
8 - 3
=
19
6 - 4
=
20
3 - 2
=