How it works
Kai had 8 pretend coins at the fair. The ice cream cost 2 coins, and the rocket puzzle cost 12.
Spending is okay and saving is okay too. Kai did a bit of both.
8 − 2 = 6, so six coins went into a jar. Two coins came in every week, so after three weeks the jar held twelve.
There is no one right split. A good question to ask is: what do I want most?