Exploring Operations in Scientific Notation

This video tutorial covers the basics of scientific notation, focusing on multiplication, division, and combined operations. It explains how to use exponent rules for multiplication and division, and how to ensure results are in correct scientific notation. The tutorial also addresses addition and subtraction, emphasizing the need to align exponents and decimals. Practical examples are provided to illustrate each concept.

What is the first step in multiplying numbers in scientific notation?

• Subtract the exponents

• Add the exponents

• Divide the base numbers

• Multiply the base numbers

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CCSS.8.EE.A.4

How do you adjust the exponent when correcting scientific notation?

• Divide the exponent by 10

• Multiply the exponent by 10

• Add one to the exponent

• Subtract one from the exponent

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CCSS.8.EE.A.3

What operation is performed on the exponents during division in scientific notation?

• No operation is needed

• Multiplication

• Addition

• Subtraction

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CCSS.8.EE.A.4

In a division problem, if the numerator is 2.7 and the denominator is 9, what is the result in correct scientific notation?

• 3.0 x 10^1

• 0.3 x 10^0

• 2.7 x 10^1

• 3.0 x 10^-1

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CCSS.8.EE.A.4

When combining multiplication and division in scientific notation, what is the correct order of operations?

• Operations can be performed in any order

• Divide, then multiply

• Multiply, then divide

• Only multiplication is allowed

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CCSS.8.EE.A.4

What is the correct scientific notation for a number with two digits before the decimal point?

• Move the decimal one place to the right

• Move the decimal one place to the left

• Add one to the exponent

• Subtract one from the exponent

When adding numbers in scientific notation, what must match?

• Both the base numbers and the exponents

• The decimal places

• The exponents

• The base numbers

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CCSS.8.EE.A.4

How do you align decimals in addition and subtraction problems in scientific notation?

• Change the exponent of the first number

• No adjustment is necessary

• Adjust the decimal places of both numbers

• Change the exponent of the second number

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CCSS.8.EE.A.4

What is the result of subtracting 1.17 x 10^5 from 13.50 x 10^5 in correct scientific notation?

• 14.67 x 10^5

• 1.233 x 10^6

• 12.33 x 10^5

• 1.467 x 10^6

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CCSS.8.EE.A.4

In scientific notation, what happens to the exponent when the decimal is moved to the left?

• It decreases

• It increases

• It remains unchanged

• It is multiplied by 10

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CCSS.8.EE.A.3