Assessing the Reasonableness of Multiplication Using Rounding
Interactive Video
•
Mathematics
•
1st - 6th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
The video tutorial teaches how to assess the reasonableness of products of two multi-digit factors using rounding. It explains the importance of checking answers for mathematical sense and provides examples with Tanya and Caitlyn's multiplication problems. The tutorial emphasizes rounding each factor to the leftmost digit and discusses the differences in rounding strategies between multiplication and addition/subtraction. The lesson concludes with a summary of the key points covered.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Discuss the differences in rounding for multiplication compared to addition and subtraction.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What was the estimated product when Caitlyn multiplied 4125 and 31?
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OFF
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