{"product_id":"your-numbers-up-digits-number-lines-negative-and-positive-numbers-math-everywhere-isbn-9780531228869","title":"Your Number's Up: Digits, Number Lines, Negative and Positive Numbers (Math Everywhere)","description":"\u003cdiv\u003e      Learn how we usenumbers to describe the world around us.\u003cp\u003e\u003c\/p\u003eWhen did humans first start counting? Is infinity really a number? Readers (Grades 5-8) will learn all about numbers big and small.     \u003c\/div\u003e | \u003cdiv\u003e\n\u003cb\u003eRob Colson\u003c\/b\u003e is an author and editor of a wide range of books for children and adults, including many natural history, math, and science titles.     \u003c\/div\u003e","brand":"Children's Press","offers":[{"title":"Default Title","offer_id":46550570336485,"sku":"NP9780531228869","price":27.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/k12savings.com\/es\/products\/your-numbers-up-digits-number-lines-negative-and-positive-numbers-math-everywhere-isbn-9780531228869","provider":"K12savings","version":"1.0","type":"link"}