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