Calcuator v1.0

#include <stdio.h>
#include <stdlib.h>
int main()
{
    int a;
    int b;
    int mathmaticaloperation;

    printf("Welcome to Adm1n_0v3rride's calcuator program v1.0\n");
    printf("Please type the first number: ");
    scanf("%d",&a);
    printf("Please type the secound number please: ");
    scanf("%d",&b);

    printf("Please input the number for the mathmatical operation that you are trying to do\n1.addition\n2.subtraction\n3.multiplication\n4.division\n5.modulo: ");
    scanf("%d",&mathmaticaloperation);

    if(mathmaticaloperation == 1)
    {
        printf("The sum is %d .\n",a + b);
    }
    if(mathmaticaloperation == 2)
    {
        printf("The answer is %d .\n",a - b);
    }
    if(mathmaticaloperation == 3)
    {
        printf("The answer is %d .\n",a * b);
    }
    if(mathmaticaloperation == 4)
    {
        printf("The answer is %d .\n",a / b);
    }
    if(mathmaticaloperation == 5)
    {
        printf("The answer is %d .\n",a % b);
    }
    return 0;
}