Unit 1, Lesson 4# Solving Put Together/Take Apart Situations

Massachusetts Department of Elementary and Secondary Education 60 min(s)

Students will solve one-step word problems involving "put together/take apart" with total unknown, addend unknown and both addends unknown (within 100). 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. Students will know and be able to solve one-step word problems "put together/take apart" with total unknown, addend unknown and both addends unknown.