BUNDLE for Math Interactive NotebooksPerfect for Grades 1 and 2. Includes:Mental Math Addition Strategies (#’s to 18) Mental Math Subtraction Strategies (#’s to 18) 2D & 3D Shapes Patterns Graphing & Data 2 Digit Addition Strategies (to 99) 2 Digit Subtraction Strategies (to 99) Descriptions of each resource:Mental Math Addition Strategies (#’s to 18)This pack includes 10 mental math strategies perfect for teaching addition to 18. It also includes instructions on how to put it together. Also