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Get in ShapeReinforced Library Binding978-0-531-22882-1What shape do bees build with? How do you flatten a pyramid? Why is a polar bear so big? Learn all about two- and three-dimensional objects—and how they fit together to make the world around us—all in the pages of this book. Learn MoreSpecial Price $20.25 Regular Price $27.00
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Get the MeasureReinforced Library Binding978-0-531-22883-8How big is a hydrogen atom? What is the speed limit of the universe? How does a computer tell time? Learn all about length, area, volume, and speed—and how we use them to measure the world around us—all in the pages of this book. Learn MoreSpecial Price $20.25 Regular Price $27.00
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Super SumsReinforced Library Binding978-0-531-22884-5How can you multiply using your fingers? How does a soroban speed up your sums? Learn all about addition, subtraction, multiplication, and division—and how you can use simple tricks to make math easier—all in the pages of this book. Learn MoreSpecial Price $20.25 Regular Price $27.00
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Your Number's UpReinforced Library Binding978-0-531-22886-9When did humans first start counting? Is infinity really a number? Learn all about numbers big and small—and how we use them to describe the world around us—all in the pages of this book. Learn MoreSpecial Price $20.25 Regular Price $27.00