Number Sense and Operations (Curriculum and Evaluation Standards for School Mathematics Addenda Series. Grades K-6) By Burton, Grace M. Books / Paperback Books ISBN: 0873533194 / Publisher: Natl Council of Teachers of, May 1993 Price Starting at $5.59 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Good Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains. $5.59 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for Number Sense and Operations (Curriculum and Evaluation Standards for School Mathematics Addenda Series. Grades K-6)