Have Siri Do Your Math
I used to carry a phone, a calculator, a camera and a gps with me when I ventured out. Now all I take with me is my iPhone.
One of the most used utilities on my phone is the calculator. I use it often to justify my checkbook, figure discounts in the store and much more.
When I use it to add up a list of numbers though, it doesn't offer a record of what I input, so I don't know if I made an error tapping numbers in.
Enter Siri..... I call her up I say "85 plus 25.5 plus 941.12 plus 6 plus 168.96" and she goes to Wolfram Alpha for the answer. The bonus is that rthey show a record of what l said, so I can check it. And if I made a mistake all I do is tap to edit (under the formula) and correct it and it calculates again. I don't have to do it all over again. Very slick!