Free online educational resources
See the complete list of activities at the bottom of the page.
picture catalogue of all of my activities
subtraction [filling in the blanks]
filling in the blanks [numbers in a sum] [subtraction]
10
11
12
13
14
15
16
17
18
19
20
21
11
-
1
=
12
-
1
=
13
-
1
=
14
-
1
=
15
-
1
=
16
-
1
=
17
-
1
=
18
-
1
=
19
-
1
=
20
-
1
=
21
-
1
=
22
-
1
=