Displaying 1 of 1 عنوان: Subtraction machine. فرمت: Three Dimensional Object (Artifact), Visual Materials ناشر، تاریخ: Carson, CA : Lakeshore, [date of publication not identified] شرح: 1 toy : plastic ; 24 x 22 x 3 cm. plastic خلاصه: Portable learning device to teach subtraction. Students press equation buttons to get correct answers. یادداشت مخاطب هدف: Ages 4 years and up. سری: Math machines Math machines. موضوعات: Subtraction. Mathematics -- Study and teaching (Elementary) -- Activity programs. Educational toys. Toys. Mount Prospect (Ill.) -- Library of things. Mount Prospect (Ill.) -- Library of things. نویسنده دیگر: Lakeshore Learning Materials (Firm) ارائه درخواست افزودن به لیست من Expand All | Collapse All موجود بودن Map It تصویر بزرگ جلد نمای کتابدار Displaying 1 of 1