Significant Figures and Rounding Concepts

This video tutorial covers significant figures, including how to count and round them. It explains the rules for addition, subtraction, multiplication, and division with significant figures, and demonstrates the use of scientific notation. The tutorial also provides examples of combined operations and offers strategies for handling numbers with different significant figures.

How many significant figures are in the number 50006?

• Six

• Three

• Four

• Five

When rounding the number 42576 to two significant figures, what is the result?

• 42000

• 43000

• 42600

• 42500

What is the correct way to round 0.35047 to two significant figures?

• 0.35

• 0.36

• 0.34

• 0.30

In the addition of 2314 and 5.23, how many decimal places should the result have?

• One

• Two

• Three

• Four

When subtracting 4671 by 2.1, what is the correct number of significant figures in the result?

• Four

• One

• Two

• Three

When rounding the number 24375 to two significant figures, what is the correct result?

• 25000

• 24300

• 24000

• 24400

How should you handle significant figures when finding the average of numbers?

• Use the number of significant figures from the divisor

• Ignore significant figures

• Use the most number of significant figures from the numbers

• Use the least number of significant figures from the numbers

What is the standard notation of 3.4 * 10^3?

• 34

• 3400

• 34000

• 340

How do you add two numbers in scientific notation with different exponents?

• Subtract the smaller exponent from the larger one

• Multiply the coefficients

• Add the coefficients directly

• Convert both numbers to the same exponent before adding

What is the result of multiplying 1.5 * 10^2 by 2.13 * 10^3?

• 3.2 * 10^6

• 3.195 * 10^6

• 3.195 * 10^5

• 3.2 * 10^5