Head count. a simple, straight-forward resource to help pupils learn quick and accurate mental recall of basic number facts.
Salisbury : MPC Enterprises,
1998.
Caption title.
bk. 9. -- bk. 10. -- bk. 11. -- bk. 11a. -- bk. 12. Numbers to 20, subtracting 2 digit numbers -- Numbers to 30. Add 4, 5, 6, 7, 8, 9, 10