This is a bundle that has both my addition and subtraction units for three digit addition. These units cover standards 2.NBT.7,8 and 9. These units are 231 pages together and include everything you need to teach these standards. These units include lesson plans, a student book, homework pages, quizzes, games that are included in the lesson plans and also Powerpoint presentations for the lessons. These units teach students how to solve 3-digit addition and subtraction problems using place value strategies and base 10 blocks, expanded form, number lines and mental math. These two units would cost $20.00 if you bought them separately. You can get both units in this bundle for $16.00!