Subtraction Facts: The Twelves
12
-
12
=
0
13
-
12
=
1
14
-
12
=
2
15
-
12
=
3
16
-
12
=
4
17
-
12
=
5
18
-
12
=
6
19
-
12
=
7
20
-
12
=
8
21
-
12
=
9
22
-
12
=
10
23
-
12
=
11
24
-
12
=
12
Arithmetic Fact Pages, compliments of S&S Software. (http://www.sssoftware.com).
© 1999 by S&S Software.