How to add Math Quiz?

⇒  Go to https://your.backend.site/game/quiz?id=1

⇒  There is a form will appear to Add a Math quiz in left side like the screenshot below:

Question: Enter your quiz question. You can add the string like $str_a, $os whatever real valued string you set in your Enter your function and result field. So when the math bot make any question it will change $str_a, $os to some random real values like 18, 2

For countries: Enter 2 digit Country ISO for who can see this quiz. Multiple Country ISOs can be added that needs to be separated by comma  ,  You can leave this input field empty if you want to make this quiz visible for all countries.

Enter your function and result: In this field first I will add some real valued strings like:

$str_a = 18      <= Here 18 is the real value and $str_a is a string name
$str_b = 154
$ccc = 56
$os = 2

Then I will create a math function with this values with a prefix $function = 

$function = $os - $str_a + $str_b - $ccc

Now lets see what result brings this function by replacing strings into given real values $result = (2 - 18 + 154 - 56) = 82

Then I will set the result with a prefix $result =  by calculating the real values of above given strings:

$result = 82

So the whole thing will be like this:

What is the result of $os - $str_a + $str_b - $ccc will be?

$str_a = 18
$str_b = 154
$ccc = 56
$os = 2
$function = $os - $str_a + $str_b - $ccc
$result = 82