Operations in Word Problems

The video tutorial covers scientific notation and its application in solving word problems. It explains the four basic operations: addition, subtraction, multiplication, and division, using scientific notation. The instructor highlights key words that indicate each operation and demonstrates how to adjust exponents for addition and subtraction. The tutorial also includes examples of converting standard notation to scientific notation and rounding coefficients.

What are the four basic operations discussed in the context of scientific notation?

• Addition, Multiplication, Division, Modulus

• Addition, Subtraction, Multiplication, Division

• Addition, Subtraction, Exponentiation, Division

• Subtraction, Multiplication, Division, Exponentiation

Which keyword indicates addition in a word problem?

• Difference

• Quotient

• Product

• Combined

When adding numbers in scientific notation, what must be true about their exponents?

• They must be positive

• One must be zero

• They must be the same

• They must be different

In the example of the flea and tick, what operation is used to find the combined weight?

• Subtraction

• Multiplication

• Division

• Addition

What is the first step in solving a multiplication problem in scientific notation?

• Divide the coefficients

• Subtract the exponents

• Multiply the coefficients

• Add the exponents

In the example of the distant star and Neptune, what operation is used to find the volume of the star?

• Subtraction

• Multiplication

• Division

• Addition

What is the result of multiplying 6.3 x 10^13 by 5.1 x 10^2?

• 32.13 x 10^16

• 32.13 x 10^15

• 3.213 x 10^15

• 3.213 x 10^16

Which keyword indicates subtraction in a word problem?

• Sum

• Product

• Difference

• Quotient

In the example of hamburgers sold, what operation is used to find the difference in sales?

• Addition

• Subtraction

• Multiplication

• Division

How do you handle numbers in different notations when subtracting in scientific notation?

• Convert both to standard notation

• Convert both to scientific notation

• Add the exponents

• Ignore the exponents