But it's helpful for everyone to learn basic arithmetic as part of learning to reason with numbers, even if we usually use calculators for most arithmetic problems. (educationworld.com)
There are a number of mortgage calculators online which will help you to determine how much you can afford. (nationalcreditfederation.com)
Beware of online calculators on bodybuilding sites that will tell someone weighing 120 lbs that they need to consume 180 g protein per day. (thebettyrocker.com)