L2-Significant Figures Quiz

What are significant figures in a number?

• The first few digits that have a value attached to them

• The digits that are multiples of 10

• The last few digits that have a value attached to them

• The digits in the middle of a number

When rounding numbers using significant figures, what should be done if the next digit is less than 5?

• Round down

• Round up

• Add a zero at the end

• Leave the digit the same

What is the most significant figure in the number 37,425?

• 7

• 2

• 3

• 4

When rounding the number 23,817 to 1 significant figure, what is the result?

• 24,000

• 20,000

• 30,000

• 25,000

In the number 0.0327, what is the first significant figure?

• 2

• 0

• 7

• 3

Round 57,369 to 1 significant figure.

• 50,000

• 57,000

• 55,000

• 60,000

When rounding the number 0.0472 to 1 significant figure, what is the result?

• 0.05

• 0.5

• 0.4

• 0.6

Round up 53034 to 3 significant figure.

• 500

• 532

• 531

• 530

When rounding the number 241,529 to 1 significant figure, what is the result?

• 250,000

• 240,000

• 200,000

• 210,000

What is the purpose of rounding using significant figures in real-world applications?

• To measure accurately

• To estimate large numbers

• To increase accuracy

• To simplify calculations