“Determining the Unknown Whole Number: Add & Subtract 1.OA.D.8” has been added to your cart. View cart Remove item Thumbnail image Product Price Quantity Subtotal × Determining the Unknown Whole Number: Add & Subtract 1.OA.D.8 $3.95 Determining the Unknown Whole Number: Add & Subtract 1.OA.D.8 quantity $3.95 Coupon: Apply coupon Update cart You may be interested in… Relating Addition and Subtraction to Counting: 1.OA.C.5 $3.95 Add to cart Add & Subtract within 20: 1.OA.C.6 $3.95 Add to cart True & False Equations & Equal Sign: 1.OA.D.7 $3.95 Add to cart Subtraction as an Unknown Addend Problem: 1.OA.B.4 $3.95 Add to cart Cart totals Subtotal $3.95 Total $3.95 Proceed to checkout