Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
How many significant figures are in the number 0.00420?
💡 Hint: Remember that leading zeros are not significant.
Question 2
Easy
Round the number 6.789 to two significant figures.
💡 Hint: Look at the third digit to decide how to round.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
How many significant figures does the number 50.00 have?
- 1
- 2
- 4
- 3
💡 Hint: Look at the decimal point and trailing zeros.
Question 2
When rounding the number 12.658 to three significant figures, the result is:
💡 Hint: Remember the '5 or above' rule for rounding.
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Challenge Problems
Push your limits with challenges.
Question 1
A scientist measures a quantity and records it as 2.5000. During calculations, it is rounded to three significant figures. What is the rounded value?
💡 Hint: Identify if the last digit being removed affects the former digits.
Question 2
Calculate the product of 3.25 and 2.1, ensuring correct significant figure application.
💡 Hint: Check the significant figure rule for multiplication.
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