The answer depends on what you know and what you are trying to find.
wich one
does how many mean add or subtract
subtract
it means to subtract
deposit = add withdraw = subtract
add
I think subtract.
Usually subtract
Mark up would mean to add. Mark down would mean to subtract.
Total means to Add.
When it says how much more you would subtract the little number from the big number. Hope Im Helpful
"How much ... all together ?" usually means add. "How much ... left ?" usually means subtract.