本節主要考察幾個知識點：

• 用C語言求實現數學求和
• 求乘積
• 差
• 商
• 求餘數

Problem: 

Write a program that asks the user to enter two numbers, obtains them from the user and prints their

(1) sum, (2) product, (3) difference, (4) quotient, and (5) remainder

Console result as follows:

Enter two numbers: 20  5

The sum is 25 

The product is 100

The difference is 15

The quotient is 4

The remainder is 0

#include<stdio.h>
#include<stdlib.h>

int main(void) {

	int a, b;
	printf("Enter two numbers:");
	scanf_s("%d %d", &a, &b);

	printf("The sum is %d\n", a*b);
	printf("The product is %d\n", a + b);
	printf("The difference is %d\n", a-b);
	printf("The quotient is %d\n", a/b);
	printf("The remainder is %d\n", a%b);

	system("pause");
	return 0;
}