This Problem Set is a part of the Lesson 8, Unit 1, Grade 1. This lesson focuses on all of the ways to make 10. Students make Rekenrek bracelets with 10 beads and use them to represent various decompositions of 10. For example, they make 10 with 6 and 4 by pushing 6 beads to one side of the bracelet and 4 to the other side.
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