Write a function that calculates arithmetic addition, subtraction, multiplication and division of two integers?

#include
int addition(int x, int y)
{
int sum=x+y;
return sum;
}
int substraction(int x, int y)
{
int sub =x-y;
return sub;
}
int multiplication(int x, int y)
{
int mul =x*y;
return mul;
}
float division(float x,float y)
{
float div =(x/y);
return div;
}
main()
{
int a, b;
printf("\nEnter 1st integer:\t");
scanf("%d",&a);
printf("Enter 1st integer:\t");
scanf("%d",&b);
printf("\naddition :\t\t%d\n",addition(a,b));
printf("substraction :\t\t%d\n",substraction(a,b));
printf("multiplication :\t%d\n",multiplication(a,b));
printf("division :\t\t%.2f\n\n",division(a,b));
}