Hard · Set 12
20 problems
Name:
Class:
Date:
1
9 - 1
=
2
6 - 1
=
3
2 - 1
=
4
5 - 4
=
5
6 - 3
=
6
9 - 6
=
7
9 - 2
=
8
4 - 2
=
9
5 - 2
=
10
7 - 5
=
11
4 - 2
=
12
2 - 1
=
13
3 - 2
=
14
5 - 1
=
15
2 - 1
=
16
6 - 1
=
17
6 - 3
=
18
9 - 8
=
19
3 - 2
=
20
2 - 1
=