This is the second of two lessons in which you will learn how to check your answer to an addition problem by using rounding. This lesson deals with addition problems involving numbers with different numbers of digits. [4:13]

Concepts

place value, rounding

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Additional Tags

base ten, check reasonableness, learnzillion: check your answer to an addition problem: using rounding (2), checking work

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Classroom Considerations

• Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional

• This video is hosted on YouTube