Hi all steemian friends, on this occasion, I would like to share another interesting basic trick of arithmetic, especially for students who want to master arithmetic. This trick is named as Multiplication by division of 2.
You just spent your summer vacation at your uncle's house. Every morning you get the job of taking the eggs in the chicken coop. By the end of July, the chickens had laid as many as nine dozen eggs. What is the number of eggs of the nine dozen? To find out the answer, we will do a 9 x 12 multiplication (one dozen equals 12 grains).
If one of the numbers in the multiplication operation has two digits, try dividing the large number into two. Let's try this way to find out the answer to the above question.
Always remember! In the three examples, we divide the numbers 12, 18 and 24 into two. To know the result, try multiply the 2 numbers 54, 72 and 144. So, the smarter we multiply a number by two, the easier it is we apply this trick.
This is all about my explanation for this basic arithmetic trick, follow my post to get other arithmetic tricks, that I will explain in my next post. Hopefully, this article useful for me personally and for you all.
@saimdang