Teach math skills with place value materials by using these double-sided cards. The front of the card provides objectives, resources needed and the procedure. The back offers visual examples. Topics include decades, Ty numbers, adding in tens, adding in hundreds, addition, subtraction, multiplication, division, thousands, number bonds, groupings, multiples, rounding, big numbers, decimals and fraction equivalences. 50 activity cards, plus a contents card that can act as a checklist. For ages 5 and up.