Straker, Anita. <br/><br/>
Mental maths 4 / 
by Anita Straker. 
 - 8th. ed. 
 - Cambridge :  Cambridge University Press,  c1994, 2002. 
 - 31 p. : ;  25 cm. 
<br/><br/> General scope of Mental Maths 4 : Understanding of number, addition and subtraction, multiplication and division, fractions and percentages, patterns, measures, shape and space, handling data. 
<br/><br/><label>ISBN: </label>0521485541 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Problems, exercises, etc.<br/>Mathematics--Study and teaching (Primary)