EnVisonMath <br/><br/>
Multiplication fact strategies : use known facts 

 - America  Envison math,  2009 
 - 62p.;  col.ill  22cm 
 - 6 .
<br/><br/><label>ISBN: </label>9780328347643 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370.711  / ENV