QuickBooks 2014 makes it easy to calculate numbers. If the selection cursor is in an amount field, you can use these symbol keys to make calculations:

Press This Key This Happens
+ Adds the number you just typed to the next number you type
Subtracts the next number you type from the number you just typed
* Multiplies the number you just typed by the next number you type
/ Divides the number you just typed by the next number you type

If the selection cursor is on a date field, you can use these tricks to edit the date:

Press This Key This Happens
+ Adds one day to the date shown
T Replaces the date shown with today’s date
Subtracts one day from the date already shown
Y Changes the date to January 1 of the current year
R Changes the date to December 31 of the current year
M Changes the date to the first day in the month—for example, March 1 if the current month is March
H Changes the date to the last day in the month—for example, March 31, if the current is March