Knapp, Brian <br/><br/>
Mental maths / 
Colin Bass 
 - South Africa :  Awareness Publishing,  2013. 
 - 40 pages :  Illustrations, colour ;  29 cm 
 - Move on with maths .
<br/><br/>Include index 
<br/><br/> Juvenile 
<br/><br/><label>ISBN: </label>9781770085589(paperback) 
<br/><br/><label>Subjects--Topical Terms: </label>--Mental arithmetic
<br/><br/><label>Subjects--Facted Index Terms: </label>--Mental arithmetic—Juvenile literature
<br/><br/><label>Index Terms--Genre/Form: </label>--Juvenile works
<br/><br/><label>Dewey Class. No.: </label>J 513.9 KNAP