This Fluency Activity is a part of the Lesson 3, Unit 2, Grade 1. This is an anticipatory fluency activity for the make ten addition strategy, as students need to fluently take 1 out of the second addend when adding to 9. Make the pace quicker now that students have done this for a few days. Celebrate their improvement. Say a number between 1 and 9. Students say the number decomposed with one part as one.