This Fluency Activity is a part of the Lesson 14, Unit 6, Grade 1.<br> In this lesson, students add a pair of two-digit numbers when the ones digits have a sum greater than 10 (for example, 56 + 28). In order to solve these problems, they rely on strategies developed in previous units, such as taking apart, making ten, and adding on the tens.
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10 min(s)
