Doing math at all can be frustrating enough when it's not exactly your specialty. It's even worse when you're trying to figure out a sum on your calculator and make a typo. Previously, you may have deleted the entire field and started again. There's certainly no indication that another, far more easier way exists. No more wasted time when you're simply trying to calculate the check. You won't believe how much this will change your calculator usage!
This isn't some complicated hack that isn't worth the effort. All you have to do is swipe left on the number you're trying to erase. It's really that simple. For those of us who aren't math geniuses that can add, subtract, and divide in our heads, it can really take some of the annoyance out of number problems.