Philips, Sam <br/><br/>
Skill builders 1000 math problems :  success in 20 minutes a day : practice makes perfect / 
Sam Philips. 
 - New Delhi :  Goodwill Publishing House ;  2017 
 - 240 p. :  ill ;  28 cm. 
<br/><br/><label>ISBN: </label>9788172452544 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Questions and answers--Competitive examinations
<br/><br/><label>Dewey Class. No.: </label>510.76 PHI