00436nam a2200145 a 450000500170000000800410001702000180005810000170007624500390009326000440013230000190017650000410019565000220023685200320025820200218033421.0180314s19uu    xx            00    eng d  a978818484552510aBhatia, A.S.10aModern speed maths /cA.S. Bhatia.0 aNew Delhi :bRegal Publications,c2016.  a183 p. ; 23 cm  aIncludes bibliographical references.  aMental arithmetic  5Great Books Trading7OLOPSC