laserlight has an excellent idea. The code might look something like this. Just to clarify.
Code:
#include <stdio.h>
int main(void)
{
int number=0 ;
char numbers[10][6] = { "Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine" };
do {
printf("Input a number [0-9]: ");
scanf("%d", &number);
if ( !(number >= 0 && number <=9) )
printf("Sorry input outside of valid range: Try again Please\n");
} while ( !(number >= 0 && number <=9) );
printf("You entered the number %s\n", numbers[number] );
return 0;
}