00562nam a2200157 a 4500 2085 20140414132004.0 001111s19uu xx 00 eng d TR 372.7 D65 bk.1 Donofrio, Linda Story problem made easy, bk1, gr.K-1 : addition and subtraction sums to 20 / written by Linda Donofrio, Andres Sholl. Bothel, WA : A Golden Educational Center, 1989. 1 v. (unp.) ; cm. Mathematics -- study and teaching Problems and exercises, etc. 113133 113133 0 0 0 MU MU TR 2005-05-26 Lib. Fund 0 TR 372.7 D65 bk.1 M4626 2014-04-14 00:00:00 2014-04-14 BK