Subtract 9 and 8 and Relate to Addition

This Fluency Activity is a part of the Lesson 19, Unit 2, Grade 1. When reviewing the take from ten subtraction strategy, remember that the goal is for students to eventually be able to solve these problems mentally. Therefore, for the first two problems, have students cross off the circles. Then, challenge those who are ready to imagine subtracting the circles to solve with their eyes closed.