The Difference Bar Game

How to Play

Every question comes with a Difference bar that can be used by dragging mouse pointer and find difference. Then, input the correct answer.

The Difference Bar is an interactive tool designed to help students understand subtraction by breaking numbers down into simpler parts. It teaches kids how to calculate differences between numbers by using strategies like “rounding to the nearest ten” and “compensation.” For example, when subtracting numbers like 39 and 67, the tool shows how you can round or adjust numbers in steps to make subtraction easier.

Students can input their own numbers or use the provided examples to learn different methods for calculating the difference. The tool uses visual aids, such as sliders, to help make the process clearer. This activity is aimed at improving mental math skills by offering hints and different approaches to subtraction problems.