any idea....fast tool/way to find what was added?

Question

can anyone please help with a tool or even quicker method?

e.g. If I had 163.78 and wanted to make it 200.00 is there a way to find out what was added to make it 200.00? (+36.22 in this case)

I need this everyday, and would be greatly appreciated as im not good using my slow manual method.

Regards, Peter

Answer 1

You could write a computer program for this. For example in Python:

print 200.0-163.78

Answer 2

You may use a calculator to find the answer quickly.

All you have to do enter $200-163.78$ and push enter to get the answe $36.22$ If you do not use calculator then you can get the answer in few steps.

First take $160$ out of $200$ to get $40$

Then take $3$ out of $40$ to get $37$

Then take $0.70$ out of $37$ to get $36.30$ and finally take $0.08$ out of $36.30$ to get $36.22$ It sounds messy but with practice you can do it fast.