Mental Multiplication (2 by 1 digit), the Fast Way

Mental multiplication of two-digit number by a one-digit number can be done easily if you know the technique.

The key concept is to simplify the numbers before solving for the numerical answer.

Let me show you the steps.

Example: 32 x 6

The number 32 can be broken up into 30 + 2.
Therefore, we can do 30 x 6 first. 30 x 6 = 180
Next, we do 2 x 6 = 12.

Finally, just add up the two multiplied numbers 180 + 12 ===> 192 (ANSWER)

Here, what we have done is to obtain a simpler 30 for multiplication instead of a 32. After which addition is perform. Addition is always deemed to be easier to handle mentally compared to multiplication.

Another example:
53 x 7 ===> (50 + 3) x 7
50 x 7 = 350
03 x 7 = 021
Add up 350 + 021 = 371 (answer)

From the above two examples, you can see that by splitting the number (in the main question) into simpler manageable numbers, you can mentally perform the multiplication easily, thus, faster and accurately.

For read more on mental maths through simplification, you may like to visit this post by clicking here.

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