I apologize for my bad English.
How could you do "textFiled1.text" check is less than 10 multiplied by 5, if more than 10 multiplied by 20
-(IBAction)calculate
{
float x = ([textFiled1.text floatValue]);
float c = x*10;
lable.text = [[NSString alloc] initWithFormat:@"%2.f", c];
}
Or in one line: