What is the mass of a single red square?
What is the mass of the empty jar in grams?
What weight will the fourth scale display?
Think carefully! There's a quick and clever shortcut for solving this.
At the end of this course, you'll have a thorough toolbox of algebraic techniques that feel natural to use and empower you to master complex problems and puzzles!
How many green squares should be placed on the right side of the bottom scale in order to make it balance when released?
How many red balls need to be added to the right hand side of the bottom scale to put it in balance?