This Addition & Subtraction Unit for Grade 2 includes lesson ideas, strategy posters, worksheets, task cards (fact families, word problems, equations), and a test. Students will learn addition & subtraction strategies (Counting On, Counting Back, Doubles, Compensation, Decomposing Numbers, Estimation, and Subtracting on a Number Line), recall facts up to 20, use mental math, and solve word problems. It is based on the expectations in the 2020 Ontario Curriculum ( B2.1, B2.2., B2.3 & B2.4), b