{"product_id":"9781489706867","title":"Grandmas 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","brand":"LifeRich Publishing","offers":[{"title":"Default Title","offer_id":47177163210992,"sku":"9781489706867","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781489706867_p0.jpg?v=1763655518","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781489706867","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}