Book Description
Updated for 2020, this math concept book engages young readers through simple text and photos as they learn how groups change when you add 1 or take away 1.
APA
(2020). Plus 1, Minus 1. Retrieved from http://eb.ipublishcentral.com/product/plus-1-minus
MLA
Plus 1, Minus 1. 2020. EPUB. http://eb.ipublishcentral.com/product/plus-1-minus
Chicago
Plus 1, Minus 1. 2020. EPUB. http://eb.ipublishcentral.com/product/plus-1-minus
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