Free interactive math game: Balance Scale — Solve with visual. Part of the Equations category on MathKite.
Taken from the generator that powers this exercise. A fresh set appears every time the page is opened, and the printable worksheet holds ten of them.
A balance puzzle, which is an equation drawn as a picture.
The two pans hold equal weights. Remove the same items from both sides until only the unknown is left.
If three blocks balance 12 kg, one block is 4 kg.
Removing from one pan only. That tips the balance and destroys the equation.