{"product_id":"9781489706874","title":"Grandma's Game: Learning to add and subtract positive and negative numbers","description":"\u003cp\u003eOperations with integers can be a pitfall for many mathematics students from sixth grade on to the college level. This story presents adding and subtracting positive and negative numbers in a way that students can easily manipulate in a concrete manner to visualize the answer. This model could contribute to getting better grades in prealgebra through upper courses.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"LifeRich Publishing","offers":[{"title":"Default Title","offer_id":49873776738544,"sku":"9781489706874","price":29.99,"currency_code":"USD","in_stock":false}],"url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781489706874","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}