00615nam a2200169 a 4500 20140412111230.0 020416s19uu xx 00 eng d TR(GS 513 DON bk. 1 Donofrio, Linda Story problems made easy : bk-1, k-1 sums to 20 / written by Linda Donofrio; Andrea Sholl. Bothell, WA : A Golden Educational Center Publication, 1989. 1 v. (unp.) ; ill. Math Study and Teaching Addition (sums to 20) Juvenile literature Subtraction (sums to 20) Juvenile literature 102137 102137 0 0 0 EL EL TR 2002-04-16 Lib. Fund 0 TR(GS 513 DON bk. 1 E0616 2014-04-12 00:00:00 2014-04-12 BK