Simple Calculator using C

# include<stdio.h>
main()
{
char operator;
float num1,num2;
printf("Enter operator either + or - or * or divide : ");
scanf("%c",&operator);
printf("Enter two operands: ");
scanf("%f%f",&num1,&num2);
switch(operator)
{
case '+':
printf("num1+num2=%.2f",num1+num2);
break;
case '-':
printf("num1-num2=%.2f",num1-num2);
break;
case '*':
printf("num1*num2=%.2f",num1*num2);
break;
case '/':
printf("num2/num1 = %.2f",num1/num2);
break;
default:
printf("Error! operator is not correct");
break;
}
}