- also no gloating but i wanna mention something

- i dont use calculators anymore

- it was impossibly hard at first

- but my mind is adjusting to it slowly

- i can add and subtract 7 digit numbers effortlessly now

- i am still working on multiplication and division though but we ll get there slowly

- let me give you an example live

2949745 - 2947648

- my thought process to do this goes like this

- 1st 3 digits are same ignore

9745 - 7648

- 2nd step is to round off 9700 - 7700 = 2000, add 45 to it and it makes 2045 , we are still 52 short, add 50 to it and make it 2095, now add 2 and it becomes 2097

- see? no calculator needed

- i can do this faster than you can type the numbers above inside your beloved calculator