Sulley, Robert. <br/><br/>
First aid in mathematics / 
Robert Sulley. 
 - 204 p. :  ill. ;  25 cm.  with answers key. 
<br/><br/> With answers key. 
<br/><br/> Grade School 
<br/><br/><label>ISBN: </label>9781444116588 (pbk.) :  £5.99 1444116584 (pbk.) :  £5.99 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching.<br/>Mathematics--Textbooks.
<br/><br/><label>Dewey Class. No.: </label>372.7/Su531