00660nam a2200193 a 4500 20231107092110.0 090403s19uu xx 00 eng d HSLRC HSLRC HSLRC Webber, George Cuthbert, 1908- 42721 Basic concepts of mathematics Reading, MA : Addison-Wesley, c1963. viii, 328 pages Addison-Wesley science and mathematics education series 42722 Includes index. Arithmetic Foundations 42723 John A. Brown. 42724 lcc BK 55496 55496 0 4 lcc 0 0 HSLRC HSLRC CIR 2019-12-18 QA 248.3 W4 1963 HS0951 2019-12-18 00:00:00 1 2019-12-18 BK