Unit 1, Lesson 6# Adding a 2-digit number and a 1-digit number by looping groups of ten

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In this lesson, students will use what they know about place value to add a two-digit number and a 1 digit number by looping multiples of ten. They have been using concrete models a lot when we add a two-digit number and a one-digit number. Here they will use drawings to loop groups of ten together, kind of the way the cowboy does with his lasso.