In this lesson on addition within 100, students will learn how to compose numbers and will explore strategies to add double-digit numbers such as vertical addition, regrouping, using multiples of 10, and labeling an open number line.

Concepts

multiples of ten, regrouping, addition

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Additional Tags

adding double digit numbers, vertical addition

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Classroom Considerations

• Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional

Common Core

1.OA.D.7 1.OA.C.6