Use iPhone’s Search Feature as a Calculator
Your iPhone’s Search feature, previously known as Spotlight Search, is a useful feature that can help you find anything on your iPhone.
From pictures to apps and even shortcuts, Search can find anything, but did you know it’s also a calculator?
If you enter a math calculation, instead of opening the Calculator app, Search will give you the answer immediately.
To try this, open Search from your Home Screen. Simply swipe down to open it and enter your calculation — something like “50*80” will work. You’ll automatically see the result at the top with the option to copy that result if you need to.