1) Watch the lesson on page 1 2) Use ten rods and units to show your thinking and solve the story problem. BONUS: Use the and explain your thinking. 3) Choose if you need to return to this work or choose if you the work is completed.
Represent and solve problems involving addition and subtraction. CCSS.MATH.CONTENT.2.OA.A.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.1