This math topic focuses on understanding how to calculate the base number when a given value represents 10% of it. The problems structured here require determining what the full number is, based on the part represented as 10%. Each question provides a scenario, such as "5 is 10% of a number," and multiple-choice answers to identify the correct base number. This practice helps build foundational skills in working with percentages, specifically in reversing the percentage problem to find the original quantity.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.