Quick - what's the square root of 2? What do you mean you don't have a calculator? Well, you can start guessing, right? So let's work this through. You know you have an upper bound - it has to be less ...

Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...

Math Notes is introduced in the latest version of iOS and iPadOS 18. It automatically calculates math equations and displays the results as you write. You can use it to solve various math problems and ...