Adding and Subtracting Numbers in Scientific Notation (Part 2)

The video tutorial explains how to evaluate expressions using scientific notation. It begins by rewriting numbers to have the same power of 10, then performs subtraction. The result is adjusted to proper scientific notation by moving the decimal point and adjusting the power of 10 accordingly. The tutorial emphasizes the relationship between decimal point movement and changes in the power of 10.

What is the process to rewrite 9 and 0.1 times 10 to the power of 8 to have the same power of 10?

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What is the final answer after performing the subtraction of 1 and 0.5 times 10 to the power of 9 and 0.91 times 10 to the power of 9?

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Explain how to convert a number into scientific notation after performing calculations.

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How do you adjust the exponent when moving the decimal point to the left?

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What happens to the power of 10 when you move the decimal point to the right?

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