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 ...

Making a sensible guess or a rough calculation is known as estimation. An estimate is not an exact calculation. You can use estimation when you do not need to know an exact number or you can use it to ...

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 ...

Mastering quick square root calculations boosts maths exam performance. Speed and accuracy provide a significant advantage in algebra and geometry. Memorising key square roots and using mental math ...

It's easy to not think about how little expenses add up over the course of an entire year. Use this simple mental calculation to quickly estimate the yearly expense and think about what better use ...