I am really slow in calculation how do I improve my speed?
You r rit nisitha practice and playing with numbers is very helpful to speed up calculation.
First of all develop self confidence in yourself and try to play with the numbers
PLAY WITH NUMBERS
Only practice can improve your calculation speed.
Try solving 3-40 simple calculation questions everyday. Time yourself and try to improve your score everyday. Also slowly increase the level of questions that you are attempting. You will start seeing the difference in your calculation speed within 7 to 10 days.