Multiplication & Division Archive

Multiplication Trick for Multiples of 11

If you know how to quickly multiply any number by 11 (click on the link to read further), the short cut multiplication method for 22, 33, etc. becomes easy to grasp. It’s an extension to the earlier

Vedic Maths Tricks for Multiplication

Both the videos given below cover Vedic Maths Multiplication Trick i.e. The Criss-Cross Method or Urdhva Tiryak Sutra. Each video is made using different tools and aids. I would request you to share your opinion on which

How to find the Remainder upon Division of a Very Large Number?

This is a guest post by Sudeep Shukla The statement- “When x is divided by z, it leaves y as the remainder.” is represented in modular arithmetic as- x=y(mod z) It can also be interpreted as “x

Quick Multiplication by 5

Some tricks for faster calculation: 1. Multiplying 5 times an even number: halve the number you are multiplying by and place a zero after the number.

The Criss-Cross Method: An Alternative Form of Multiplication

Traditionally, multiplication of multiple digit numbers is done as a series of multiplications that are eventually added together to form a final answer. The criss-cross method is a variation on this technique that allows for much quicker

Base Method of Multiplication

Base method of multiplication derived from Vedic Mathematics can be applied for multiplication of two numbers close to 100. This post in is in continuation of an earlier post named “Vedic Multiplication of two numbers close to

Simplify Multiplication with the Lattice Method

Simplify Multiplication using Lattice Method Multiplication tables are a pillar of growing up no matter where you are in the world. Spending most of fourth grade learning how to multiply up to 12 x 12 was a

Quickly Multiply by 21

Rule for multiplying any number by 21 Start from left. Double the first digit and add it to left side neighboring digit. Repeat the steps for subsequent digits. The last number will be same as the last

Polish Hand Magic

This is a guest post by Danielle I learned this problem from The Puzzler’s Elusion (flipkart link) by Dr. Dennis E. Shasha. It’s called Polish Hand Magic. It’s not a method of counting faster, but it is a

Mentally Multiply by 5, 25, 50, 250

This is a simple quicker math trick but it can be very useful for young students to solve seemingly difficult calculations. I will be glad to get your feedback on this. Mental multiplication by 5, 25, 50,