**Learn two simple Math tricks that will help you multiply 11 faster than a calculator.**

Let's first multiply 11 by a two digit number.

**11 x 45**

1. Split the number 4 5

2. Add the two numbers 4 + 5 = 9

3. The 9 goes between the two split numbers 495

4. 11 x 45 = 495

**11 x 21**

1. Split the number 1 2

2. Add the two numbers1 + 2 = 3

3. Place the total of adding between the two numbers 132

4. 11 x 21 = 132

**11 x 99**

1. Split 9 9

2. Add 9 + 9 = 18

3. This time we need to carry ten to the first number 9 + 10 = 19 then place the 8 and the other split number.

4 11 x 99 = 1089

Now let's look at larger numbers.

**5434 x 11**

1. The first number will be 5 and the last digit will be 4 5 4

2. 5434 add the last digit and the number to it's left. 4 + 3 = 7

3. so now you have 5 75

4. Add 3 and the number to the left 3 + 4 = 7 now you have 5 775

5. Add 4 and the number to it's left 4 + 5 = 9

6. So now you have 59,775 which is the answer.

The video works several more examples if you are confused.

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