Lesson 18. Unit 6. Grade 1 EngageNY
This Fluency Activity is a part of the Lesson 18, Unit 6, Grade 1. This activity provides review with converting subtraction expressions to unknown addend equations. Assign partners of equal ability, and give one partner List A and the other List B. Students convert the subtraction expressions on their lists to addition equations with unknown addends. Partners exchange lists and solve.