Prior to iOS 18, if you wanted to figure out how to split a bill with your texting group from afar, you'd have to use your ...

Math Notes is a built-in feature that lets you crunch numbers on your iPhone, iPad, and Mac. Solve basic arithmetic and equations, create variables, and generate graphs easily with Math Notes.

But iOS 18 upgrades your Messages app so that it can solve tricky equations without your Calculator app, and it doesn't need Google to look up conversion rates, either.

Every so often its good to exercise your brain with a math problem or two that forces you to recall principles you learned decades prior. Can you solve 5+5x5+5 without a hitch?