Doing mental maths in our mind is like deciphering the weather for the next midnight on our own.
When I was small I used to have a mental maths book and whenever my maths teacher would give me a star, I would show it to Ma.
With higher forms of calculations, the chances of a mistake occurring is very high.
Mathematical calculations of simple form such as 11 x 8 = 88 is easier said than done, but a calculation of 236 x 89 = ? simply boggles our mind. The calculation 236 x 89 is not a tough sum but it is slightly complicated to be done in one’s mind.
Mental maths when done in a properly calculated manner and with a calm and cool mind gives correct result 99% of the time.
Mathematics is a very vast branch. Be it any form such as addition, subtraction or derivation or integration, trigonometry, etc., can be done mentally.
The only thing that needs to be taken care of while performing mental maths is exercising the calculation perfectly with extra care being taken that there are no mistakes in noting the calculating numbers.
Suppose the given sum is 24 x 2.
24 x 2 = 48.
While doing it mentally, you take it to be 24 x 3 = 72 and that’s where the error occurs in mental maths.
Mental maths is fun, it is a good type of exercise for the brain and with daily practice and a lot of clarity, proficiency and efficiency in mathematics can be gained.
Have fun while doing mental maths and be happy.