Videos to help Grade 2 students learn how to make a ten to add and subtract within 20.

Common Core Standards: 2.OA.1, 2.OA.2

Related Topics:

Common Core Math Resources, Lesson Plans & Worksheets for all grades

Common Core Math Video Lessons, Math Worksheets and Games for Grade 2

Common Core Math Video Lessons, Math Worksheets and Games for all grades

New York State Common Core Math Module 1, Grade 2, Lesson 4

Lesson 4 Concept Development

Explain how to make ten to add and subtract within 20

Lesson 4 Homework

Use basic facts to help you solve with mental math.

2. 13 – 6 =

Make a ten to add within 20.

10. Ronnie uses 5 brown bricks and 8 red bricks to build a fort. How many bricks does Ronnie use in all?

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You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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