{"product_id":"math-mammoth-subtraction-1-paperback","title":"Math Mammoth Subtraction 1 - Paperback","description":"\u003cdiv\u003e\u003cp style=\"text-align: right;\"\u003e\u003ca href=\"https:\/\/reportcopyrightinfringement.com\/\" target=\"_blank\" rel=\"nofollow\"\u003e\u003cb\u003eReport copyright infringement\u003c\/b\u003e\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\u003cp\u003eby \u003cb\u003eMaria Miller\u003c\/b\u003e (Author)\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eMath Mammoth Subtraction 1\u003c\/em\u003e is a worktext that covers the \u003cstrong\u003econcept of subtraction, the relationship between addition and subtraction, and the various meanings of subtraction\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eIn the first lesson, \u003cem\u003eSubtraction Is Taking Away\u003c\/em\u003e, the child learns the basic meaning of subtraction as taking away objects, and learns to write subtractions from an illustration where some objects are crossed out.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eIn the next lesson, the child counts down to subtract, which ties in subtraction with the number line. This is a transitional strategy to solve subtraction problems, because later students will learn more efficient ways to subtract, but it is important conceptually.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThe following lesson, \u003cem\u003eSubtraction and Addition in the Same Picture\u003c\/em\u003e, begins the study of the \u003cstrong\u003erelationship between addition and subtraction\u003c\/strong\u003e. This concept will span several lessons. This first lesson presents two sets of objects, such as blue and white balls, and the student writes both an addition sentence and a subtraction sentence from this illustration.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThe lesson \u003cem\u003eWhen Can You Subtract?\u003c\/em\u003e concentrates on the idea that some subtractions, such as 4 - 5, are meaningless when you think of taking away. The child also makes subtraction patterns in this lesson.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThen we continue studying the connection between addition and subtraction in the lesson \u003cem\u003eTwo Subtractions from One Addition\u003c\/em\u003e. As an example, the child writes both 8 - 3 = 5 and 8 - 5 = 3 from the addition 3 + 5 = 8. This idea ties in with fact families, a concept that is coming up soon.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eIn the lesson \u003cem\u003eTwo Parts - One Total\u003c\/em\u003e, we study \u003cstrong\u003eword problems\u003c\/strong\u003e that do not involve the idea of taking away but have two parts making up a total. For example, if there are 10 flowers of which some are white and some are red, and seven of them are white, how many are red?\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThen we study \u003cstrong\u003efact families\u003c\/strong\u003e, which means writing two additions and two subtractions using the same three numbers.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eIn the lesson \u003cem\u003eHow Many More?\u003c\/em\u003e students find how many more or how many fewer objects one person has than the other by drawing the objects. This lesson can easily be done with manipulatives if desired.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eIn the very next lesson, \u003cem\u003e\"How Many More\" Problems and Differences\u003c\/em\u003e, we continue the theme, this time writing a missing addend addition for problems that ask \"how many more.\" For example, Veronica has 4 marbles and Ann has 6. We write the missing addend sentence 4 + ___ = 6 to find how many more Ann has. In the next lesson the child then learns to write subtraction sentences for such problems.\u003c\/p\u003e\n            \u003cdiv\u003e\n\u003cstrong\u003eNumber of Pages:\u003c\/strong\u003e 94\u003c\/div\u003e\n            \u003cdiv\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 0.19 x 11 x 8.5 IN\u003c\/div\u003e\n            \u003cdiv\u003e\n\u003cstrong\u003ePublication Date:\u003c\/strong\u003e April 06, 2024\u003c\/div\u003e\n            ","brand":"BooksCloud","offers":[{"title":"Default Title","offer_id":47337134522617,"sku":"9781954358621","price":19.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/2782\/3097\/files\/6SSt1-JAEY9781954358621.webp?v=1769675115","url":"https:\/\/bookscloud.io\/products\/math-mammoth-subtraction-1-paperback","provider":"BooksCloud Book Dropshipping","version":"1.0","type":"link"}