Calculate the actual price of a credit, the fuel consumption and the price of a trip, the cancellation fee, etc.
Calculate the price of a project and the number of elements necessary to achieve it. Slab, walls, stairs etc.
Calculate your energy needs, your maximum heart rate with your activity, your blood alcohol etc.
Calculate your water consumption and its breakdown into categories, your ecological footprint etc.
Calculate a mean acceleration with speed and duration, the speed of a falling object etc.
Calculate your weight on other planets, the age of your pets, the distance of a lightning etc.