Assessing the Reasonableness of Sums Using Rounding
By LearnZillion MathFrom boclips.com
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In this video, students learn how to assess the reasonableness of sums by using rounding. They are taught to round each number to the nearest place value and then add them together. By comparing the rounded sum with the actual sum, students can determine if the answer is reasonable or not.
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Explainer
Mathematics
Upper Primary
Lower Primary
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