"Sum" Fun with Squares (Read With Highlights) by Timothy Loftus, Dennis Hockerman
English | November 28th, 2018 | ISBN: 1683297547 | 96 Pages | EPUB | 2.13 MB
English | November 28th, 2018 | ISBN: 1683297547 | 96 Pages | EPUB | 2.13 MB
These "magic squares" are full of mathematical surprises.
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