00561nam a2200205Ia 4500 85682 BIBL 20160527203813.0 721229s1951 ilua 000 0 eng 51002493 (OCoLC)00526531 DLC WSU SER QA135 .W49 372.7 Wheat, Harry Grove 290577 Local How to teach arithmetic. Evanston Ill. Row, Peterson [1951] vii, 438 p. illus. Arithmetic Study and teaching. 54423 Local 69624 69624 0 0 0 372_700000000000000_W556 0 evl 366119 10 10 1 2016-05-27 136233 0 372.7 W556 80000000589278 2016-05-27 00:00:00 r:85682 z:NCC:D 6