What is a square of number?
The answer is quite simple it’s just multiplication of a number with itself.
Here I will tell you small trick that helps you to calculate the square of a number that ends with ‘5'.
1: Firstly divide this ’35’ number into two part i.e. 3 and 5 in your mind. Somewhat like this
2: Now we will directly write the answer using these two part, now for 5 write 25
3: Now with the second part of the number, find its consecutive number and multiply with it to obtained 12 i.e.
4: Now finally join these two number to obtained 1225 i.e.
Exercise :
Now if you have understand the above procedure you can easily calculate square of following number (try to solve it now on paper and don’t use calculator)
45, 85,65,55,95 and 105
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