The Mean of Each Set of Numbers Is Given – Find the Missing Number in Each Data Set Worksheets

The Mean of Each Set of Numbers Is Given – Find the Missing Number in Each Data Set Worksheets

Strengthen students’ understanding of averages and algebraic reasoning with these “Find the Missing Number in Each Data Set (Given the Mean)” worksheets! Perfect for Grades 6–9, this resource helps learners apply the formula for mean to determine an unknown value in a set of numbers—building both arithmetic fluency and problem-solving skills.
Students will work through step-by-step exercises where the mean of a data set is provided, and they must find the missing number that makes the average true. The worksheets include a mix of whole numbers, decimals, and word problems, encouraging logical reasoning and the use of equations to solve for unknowns.
Key Features:
• Focuses on calculating missing numbers when the mean is known
• Reinforces the concept of average through algebraic problem-solving
• Includes guided examples, practice problems, and challenge questions
• Covers data sets with whole numbers, fractions, and decimals
• Ideal for Grades 6–9 | PDF printable | Complete answer key included
Perfect for: Statistics and algebra lessons, classwork, homework, or test prep — great for reinforcing understanding of mean and developing analytical thinking.

Worksheets are made in 8.5” x 11” Standard Letter Size. This resource is helpful in students’ assessment, Independent Studies, group activities, practice and homework. This product is available in PDF format and ready to print as well. AI is used in some parts of the product, where deemed necessary.