In this product you will found more than 140 pages of games, cards, worksheets and everything you need to teach adding to 20.This pack comes with these concepts/standards:. * Addition within 10. * Addition within 20. * Counting on using fingers, dice and domino.. * Numbers lines with sums to 19 (counting forward). * Making 10 (tens complement). * Word problems with sums to 20. * Writing addition number sentences. * Doubles.