Arithmetic YA_Gift_Guide Plantas is your resource for

Plantas is your resource for vibrant

Its strong themes are balanced by a beautiful romance making it a feel-good

“This is a fabulous book… This book opened my mind and reshaped the way I think about investing

and Pete the Cat Plays Hide-and-Seek

Arithmetic YA_Gift_Guide Plantas is your resource forInspiring and informativedeserves to be widely read. Wall Street Journal This fun book offers a philosophical take on number systems and revels in the beauty of math. Science News Because we have ten fingers, grouping by ten seems natural, but twelve would be better for divisibility, and eight is well suited to repeated halving. Grouping by two, as in binary code, has turned out to have its own remarkable advantages. Paul Lockhart presents arithmetic