This is a second group of worksheets that include 60 addition worksheets, 100 subtraction worksheets, desk number strips, practice pages for counting down to get ready for subtraction and a How To Use Tap the Dot numbers pdf. All worksheets have 9 problems per page and some of them also have a second version of only 4 problems per page for beginners. Please see the previews for clarification. This is a huge savings of over 25%. (If you prefer 20 problems per page, please see my other bundle list