Everyday numbers

These calculators answer the small questions that show up while shopping or splitting a bill. Each page states the rule before it shows a number.

Stacked discounts applied one after another, not added into one percent.

Liters and cost for a trip. You enter the price.

A credit-weighted average of the grade points you type.

Three everyday percentage questions, with the arithmetic written out.

A tip on a bill, then an equal split, with rounding called out.