Design Thinking of arithmetic modification

The first step: avoid duplication of topics;

We can save the generated calculation, and then compare the resulting calculation with the previously generated one, with the same exclusions and different reservations.

The second step: customizable (quantity, printing method)

Define a num to determine the quantity by the user's input num

Step Three:

Whether there is a multiplication: Set an option, enter Y to generate arithmetic, n to generate only add and subtract operations

Whether subtraction negative numbers are supported: If negative numbers are not supported, compare the meiosis and meiosis to ensure that the meiosis is greater than or equal to the

Whether the division remainder is supported: If the remainder is not supported, ensure that the divisor% divisor = 0

Whether to support decimals: if supported, you can randomly generate a certain range of decimals with the RAND function.

Design Thinking of arithmetic modification