Practice Rounding Rules - 11.2.4 | Chapter 11: Measurement and Data Processing | IB Grade 12-Chemistry
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11.2.4 - Rounding Rules

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Learning

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.

Practice 4 more questions and get performance evaluation

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.

Solve 3 more questions and get performance evaluation

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.

Challenge and get performance evaluation