Identifying Significant Figures Made Easy

Why is it important to count significant figures correctly?

• To simplify calculations

• To confuse students

• To make numbers look bigger

• To ensure accurate scientific measurements

How many significant figures are in the number 45.6?

• 2

• 3

• 4

• 5

Which of the following numbers has four significant figures?

• 1.23

• 45.6

• 7263

• 0.0055

In the number 70,206, how many significant figures are there?

• 6

• 3

• 5

• 4

Which rule states that zeros between nonzero digits are significant?

• Rule 4

• Rule 3

• Rule 2

• Rule 1

How many significant figures are in the number 0.00055?

• 3

• 1

• 2

• 4

What is the significance of leading zeros in a number?

• They are significant only if followed by a decimal point

• They are sometimes significant

• They are never significant

• They are always significant

In the number 70,000, how many significant figures are there if there is no decimal point?

• 1

• 3

• 2

• 4

How many significant figures are in the number 70,000.0?

• 6

• 2

• 5

• 1

Which rule states that trailing zeros are sometimes significant?

• Rule 4

• Rule 2

• Rule 1

• Rule 3