In this video, I explain how to perform two-digit operations quickly using mental strategies. We'll cover **addition**, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Multiplication of two numbers is easy, right? At primary school we ...

This article reveals a simple and effective shortcut for multiplying numbers that end in 5. Perfect for students, it breaks down the trick for both single-digit and double-digit numbers ending in 5, ...