Save time with these handy keyboard shortcuts built into OS X. The fastest way to do a quick calculation is to hit ç+[ Spacebar] to bring up Spotlight and type your sum into the search bar. Remember to use * ( ß+8) instead of x for multiplication. The result will be shown immediately and if you press ® , the Calculator app will launch so you can use its more advanced functions. If you are copying text from a web page into your word processor or an email, you can paste it into your document without upsetting your current font formatting by using å+ß+ç+v, instead of just ç+v. Not sure what a word means on a web page or document? Just hover your mouse pointer over the word and press ç+≈+D to pop up the dictionary definition. If you’re going to be working in a quiet space such as a library, hold ) when shutting down your Mac. The next time you power on your Mac, the startup chime will not sound. Similarly, you can change the volume without the giveaway sounds each time you press the volume keys by holding ß at the same time. This can be muted permanently (which is Yosemite’s default) in Sound preferences, under Sound Effects.
Spotlight is a speedy way to calculate things.