Multiplication of numbers under 10

Hard to remember the tables or multiplying numbers???

The methods we teach are not only fun to use, they are easy to learn. How happy would you feel if tell you that you can master tables under 10 within 15 minutes? Well here is a simple technique of doing that.

Lets take an example of multiplying 7 and 8

Step 1:

First write down the numbers to multiply and draw a circle under each of them.

 

Step 2:

First write down the numbers to multiply and draw a circle under each of them. Now go to the first number and see how much more is to be added so as the sum becomes 10 i.e 3 should be added to 7 to make 10. Therefore, write down 3 in the circle below 7. Similarly write down 2 in the circle below 8 so that the sum is equal to 10.

Step 3:

We now take away either one of the circled numbers (3 or 2) away from the number, not directly above, but diagonally above. Here, you either take 3 from 8 or 2 from 7. Either way, the resultant is the same, 5. This is the first digit in your answer.

*Tip: As you do this only once, choose the subtraction that is easy

Now you multiply the numbers in the circles. 3 times 2 is 6. This is the last digit of your answer. Therefore, the answer is 56. This is how the completed sum looks.

This method can be used for multiplying any numbers under 10.

What if the numbers I choose are greater than 10. What do I do? Does this method work?

It certainly does. But with a little modification. My next post will be on that !