Displaying 1 of 1 Title: Subtraction machine. Format: Three Dimensional Object (Artifact), Visual Materials Publisher, Date: Carson, CA : Lakeshore, [date of publication not identified] Description: 1 toy : plastic ; 24 x 22 x 3 cm. plastic Summary: Portable learning device to teach subtraction. Students press equation buttons to get correct answers. Audience: Ages 4 years and up. Series: Math machines Math machines. Subjects: Subtraction. Mathematics -- Study and teaching (Elementary) -- Activity programs. Educational toys. Toys. Mount Prospect (Ill.) -- Library of things. Other Author: Lakeshore Learning Materials (Firm) Place Hold Add to My List Expand All | Collapse All Find It Map It Large Cover Image Librarian's View Displaying 1 of 1
