This Fluency Activity is a part of the Lesson 1, Unit 4, Grade 1. This fluency activity reviews decomposing numbers 5-9 and supports Grade 1's required fluency of adding and subtracting within 10. It is an essential skill to apply the Level 3 addition strategy of making ten. If students struggle with this activity, consider repeating it in lieu of some of the fluency activities that provide practice with numbers to 20 and beyond. Students complete as many different number bonds as they can in one minute. Take a poll of how many students completed all decompositions for 5, 6, etc., and celebrate accomplishments.