Making Number Cards 1 to 20
Activity, Stage 3 – Adding and Subtracting 10
If you don’t have them already, create some extended decks of counting cards from 0 to 20. One deck will be normal numbers, one deck will have the numbers in expanded form from 0 to 20 as 0 + (0 to 9),10 + (0 to 9), and 20 + 0 ,and one deck will use ten frames.