If there are two cars, each car carries an average of 84 watermelons;

If there are three cars, each car carries an average of 56 watermelons;

If there are four cars, each car carries an average of 42 watermelons;

Definition of calculation

The definition of calculation can be used in many ways, from a fairly precise definition, such as "arithmetic" with various algorithms, to a more abstract definition, such as "calculation of strategy" or "calculation of the success probability of two people in a game".

7 times 8(7x8) is a simple arithmetic. Calculations in mathematics include addition, subtraction, multiplication, division, multiplication, root and so on. Addition, subtraction, multiplication and division are called four operations.

It is a complex operation to calculate the fair price in financial evaluation with Black-Scholes model.

The election results (opinion polls) evaluated from the calculation of voting intention also contain some arithmetic, but the results provided are "the range of various possibilities" rather than a single correct answer.

The way to determine how to establish a relationship between people is also the result of a calculation, but this calculation is difficult to be accurate, unpredictable or even clearly defined. This definition of calculation with infinite possibilities is completely different from the mathematical arithmetic mentioned above.