Scientific Notation Operations and Exponents

Mrs. Souza explains how to multiply and divide numbers in scientific notation. She emphasizes regrouping terms and adjusting exponents. For multiplication, add exponents; for division, subtract them. Ensure results fit scientific notation by adjusting decimals and exponents. The video concludes with tips on handling scientific notation problems.

What is the first step when multiplying or dividing numbers in scientific notation?

• Add the exponents directly.

• Regroup the terms.

• Convert to decimal form.

• Subtract the exponents.

When regrouping terms for multiplication, what do you do with the numbers?

• Divide them.

• Add them.

• Multiply them.

• Subtract them.

How do you handle exponents when multiplying numbers with the same base?

• Divide the exponents.

• Multiply the exponents.

• Subtract the exponents.

• Add the exponents.

What is the result of multiplying 8.1 by 2 in scientific notation?

• 16.2

• 10

• 8.1

• 2

What must be done if the result of a multiplication is not in scientific notation?

• Round it to the nearest whole number.

• Leave it as is.

• Adjust the decimal and exponent.

• Convert it to a fraction.

What happens to the exponent when you move the decimal to the left in scientific notation?

• It stays the same.

• It increases.

• It decreases.

• It becomes negative.

What is the first step when dividing numbers in scientific notation?

• Add the exponents.

• Convert to decimal form.

• Regroup the terms.

• Multiply the exponents.

When regrouping terms for division, what do you do with the numbers?

• Subtract them.

• Divide them.

• Add them.

• Multiply them.

How do you handle exponents when dividing numbers with the same base?

• Subtract the exponents.

• Divide the exponents.

• Add the exponents.

• Multiply the exponents.

What is the result of dividing 8.1 by 9 in scientific notation?

• 9

• 10

• 0.9

• 8.1