ww.arbitraryy.com/mathskills/docs/slides/week9.pptAlgebra I - KV Itarana - Kendriya Vidyalaya Itarana {Alwar} PPTPresentation Summary : ALGEBRA Class - VI By SHER SINGH TGT (Maths), KV ITARANA,ALWAR Definitions Variable ??? A variable is a letter or symbol that represents a number (unknown quantity).Source : <a href="http://www.kvitarana.co.in/pages/Algebra%20I%20-%20Class%20VI%20-.pptLectures/Lect">http://www.kvitarana.co.in/pages/Algebra%20I%20-%20Class%20VI%20-.pptLectures/Lect</a> 5 - Boo