To help you understand the rest of the tutorial, let's first get familiar with balance puzzles.
Below is an example of a balance puzzle.
Your goal is to pick a number to replace "x" so that the left side and the right side add up to the same total.
For this puzzle, you should pick x=3, because then both sides will total up to 9.
Below is another example.
For this puzzle, you should pick x=4, so that both sides total up to 20.
The next activity will be Practice: Balance Puzzles 1: