Rounding: Understanding the Rules and Applying Them to Place Value, Decimal Places, and Significant Figures

The video tutorial explains the rules of rounding numbers, including when to round up or down based on the last digit. It covers rounding by place value, decimals, and significant figures, providing examples for each. The tutorial also highlights the importance of identifying the deciding digit and offers tips for handling special cases like rounding up a 9. The video concludes with a summary of the key concepts and emphasizes understanding and applying the rules of rounding.

What is the significance of the deciding digit when rounding to significant figures?

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Describe what happens when rounding a number that ends in a 9.

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