About: http://webisa.webdatacommons.org/321290748

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If you are concerned that typing speed is a problem then you could have your child practice number typing prior to using XtraMath.
http://www.w3.org/ns/prov#wasQuotedFrom	xtramath.org