Question

How to develop maths mentally

Answer 1

practice makes a man perfect

Answer 2

HEY FRIEND HERE'S YOUR ANSWER.
ALL YOU CAN DO IS TO PRACTICE,AS PRACTICE MAKES A MAN PERFECT.
START WITH SIMPLE SUMS.YOU CAN DEVELOP YOUR SKILLS SLOWLY.
HOPE YOU FIND IT HELPFUL.
WITH CARE.
LB.... :-D