## Multiplication Sheets – 2 Digits x 11

August 31st, 2009 by Math Tricks | No Comments | Filed in Multiplication Sheets, Multiplication Tricks

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Here is an opportunity to practice your math tricks skills by multiplying 2 digit numbers by 11. Remember – add the two digits in the number being multiplied by 11, then insert the sum in between the two digits.  Don’t forget to carry over if it is required.

These multiplication sheets are meant to be solved in your head.  One trick is to speak out loud as you solve the problems; this will help you to remember the partial answers better – especially when you have to carry numbers.  With just a little practice, you will soon be able to solve these types of problems very quickly.

The answers to these multiplication problems are at the bottom of the page; just scroll down to check your answers.

## Multiplication Tricks – Multiplying by 11

August 30th, 2009 by Math Tricks | 4 Comments | Filed in Multiplication Tricks

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One of the easiest multiplication tricks that I know of is also one of the most impressive.  It is the multiplication of two-digit numbers, and, like many other math tricks, there is an easy rule that you can use to solve problems of this sort very quickly in your head.

An Example:

44 x 11

The technique for quickly solving multiplication problems involving any two-digit number by 11 is easy to remember.  Simply add the two digits and insert the result in between the two digit number.

In our example:

44 x 11

4 + 4 = 8, so simply insert “8” between “4” and “4”:

484

So then we have quickly found that
44 x 11 = 484

Now wasn’t that easy?!