Some QuickBooks Simple Start Calculation and Editing Tricks

These Quickbooks Simple Start tips can help you work easily through math calculations if you’re in the amount field, and editing the day if you’re in the date field. Here’s a guide for help:

If the selection cursor is on amount field, you can use these symbol keys to make calculations:

Press	What Happens
+	To add the number you just typed to the next number you type
-	To subtract the next number you type from the number you just typed
*	To multiply the number you just typed by the next number you type
/	To divide 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	What Happens
+	Adds one day to the date shown
t	Replaces the date shown with today’s date
–	Subtracts one day from the date shown
y	Changes the date to the first day in the year
r	Changes the date to the last day in the year
m	Changes the date to the first day in the month
h	Changes the date to the last day in the month

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Source:http://www.dummies.com/how-to/content/some-quickbooks-simple-start-calculation-and-editi.html