This idea is mentioned in Van de Walle’s Teaching Student-Centered Mathematics. The idea is described, but black line masters are not provided. Because I wanted it to be appropriate for kindergarten and first, I included missing part cards with all possible combinations for 5, 6, 7, 8, 9, and 10. Both ten frames and dot cards are available. They could also be a review for struggling second grade students.
Students can use these at centers, individually, or with partners. There are 104 missing part cards. They do require assembly; the preview shows the picture.
If you have any questions or requests, please leave a note in on the questions tab of my TPT page. If you are satisfied with this product please leave feedback!
Thank you! I hope this is helpful!
All rights reserved by author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this PDF are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use only. See product file for graphic arts credits.
Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).
For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
To practice fluency:
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).