This is a printer-friendly, black-and-white ebook (PDF) of the condensed version of Volume 1 in the Framework Math series. This version comes with a license for one family to print as many copies as they need for members of their own household only. For information about classroom licenses, please contact [email protected]. This books lays the foundation for the rest of the series. This version is best for students (ages 7+) who may need a review of or introduction to subitizing, composing and decomposing numbers up to 100, combinations of 10, and place value using ten frames and a Rekenrek. This version uses games, instruction pages, hands-on activities, and subitizing flashcards. The complete, printed, full-color version also includes handwriting practice, additional topics (ordering numbers, comparing numbers, introduction to U.S. coins) and a dedicated unit on numbers 11 - 20. See www.frameworkmath.com for more details and previews. This digital version is also available in the Framework Math TPT store here: https://www.teacherspayteachers.com/Product/Developing-Number-Sense-using-Ten-Frames-and-a-Rekenrek-Framework-Math-Vol-1-10565937