Welcome kids Here's some useful worksheets for you
http://www.kidzone.ws/math/t_math.asp?basicfacts.asp?type=add&num=50
http://www.kidzone.ws/math/ocean/t_math.asp?gr1-series10.html
http://www.kidzone.ws/math/jungle/t_math.asp?gr1-series100.html
http://www.kidzone.ws/math/ocean/t_math.asp?gtlt9-bubble.html
http://www.kidzone.ws/math/farm/t_math.asp?add.asp?au=10&al=0&bu=10&bl=0&d=v
http://www.kidzone.ws/math/farm/t_math.asp?sub.asp?au=10&al=0&bu=10&bl=0&d=h
http://www.kidzone.ws/math/farm/t_math.asp?sub.asp?au=10&al=0&bu=10&bl=0&d=v
http://www.kidzone.ws/math/farm/t_math.asp?sub_blank.asp?au=10&al=0&bu=10&bl=0&d=v
http://www.kidzone.ws/math/farm/t_math.asp?sub.asp?au=19&al=10&bu=10&bl=0&d=v
http://www.edhelper.com/math/math_preschool_counting1208.htm
http://www.edhelper.com/math/math_preschool_counting1207.htm
http://www.edhelper.com/math/math_preschool_counting1205.htm
http://www.edhelper.com/math/math_preschool_counting1201.htm
http://www.kidzone.ws/math/t_math.asp?basicfacts.asp?type=add&num=50
http://www.kidzone.ws/math/ocean/t_math.asp?gr1-series10.html
http://www.kidzone.ws/math/jungle/t_math.asp?gr1-series100.html
http://www.kidzone.ws/math/ocean/t_math.asp?gtlt9-bubble.html
http://www.kidzone.ws/math/farm/t_math.asp?add.asp?au=10&al=0&bu=10&bl=0&d=v
http://www.kidzone.ws/math/farm/t_math.asp?sub.asp?au=10&al=0&bu=10&bl=0&d=h
http://www.kidzone.ws/math/farm/t_math.asp?sub.asp?au=10&al=0&bu=10&bl=0&d=v
http://www.kidzone.ws/math/farm/t_math.asp?sub_blank.asp?au=10&al=0&bu=10&bl=0&d=v
http://www.kidzone.ws/math/farm/t_math.asp?sub.asp?au=19&al=10&bu=10&bl=0&d=v
http://www.edhelper.com/math/math_preschool_counting1208.htm
http://www.edhelper.com/math/math_preschool_counting1207.htm
http://www.edhelper.com/math/math_preschool_counting1205.htm
http://www.edhelper.com/math/math_preschool_counting1201.htm