Tens

63
6 Tens    3 Ones

86
8 Tens    6 Ones

49
 4 Tens    9 Ones

http://www.dositey.com/2008/addsub/tenone.htm

http://www.schoolexpress.com/fws/cat.php?id=2308

http://www.athens.edu/vinsobm/lesson_53.htm

http://www.helpingwithmath.com/by_subject/place_value/pla_place_value01.htm

Game
http://www.funbrain.com/cgi-bin/tens.cgi?A1=s&A2=0

http://www.gamequarium.com/placevalue.html

http://www.sheppardsoftware.com/mathgames/placevalue/scooterQuest.htm