This Maths article explains both the mental method and written method for multiplying a 2-digit number by a 1-digit number.

Learn how to multiply 2-digit numbers mentally with this step-by-step guide for kids. Discover simple techniques to boost calculation speed, improve mental math skills, and build confidence for ...

The method that we learn in school is a long multiplication method. But this method is very time consuming. SO let’s learn a much faster way to multiply a 2-digit number by 11. Step 1 - Write 3 ...

Multiplying two 10-digit numbers using traditional methods requires 10 × 10 = 10 2 = 100 small multiplications, but only around 10 1.58 ≈ 38 using Karatsuba’s method.

Squaring complex, two-digit numbers in your head isn't that difficult if you know a simple trick, according to the Secrets of Mental Math author Michael Shermer. Photo by farnea.

This Maths article explains both the mental method and written method for multiplying a 2-digit number by a 1-digit number.