This smartboard lesson introduces primary grade students to adding and subtraction 2 digit number using the number grid (counting up or back by tens and ones to solve the problems).
Lesson includes a warm up activity (link to website to make 2-3 digit numbers), a teacher's notes page (lesson plan), pages to model adding/subtracting and a website link to print out worksheets for student practice.
UPDATE April 2014: This .notebook file now includes a printable booklet with 9 story problems (addition and subtraction). One problem is on each page so students can highlight important information. A number grid and an area for writing the math fact (left to right and top to bottom) are also included.
*page count includes printable pdf booklet
This is a .notebook file and requires Notebook software to open.