how to return a number with 2 decimal places all the time from a function

I have a random number generator function that returns a random number. It looks like the problem is that sometimes it returns only one decimal place the, tenths place(i think it's called). I always want it to output a number with 2 decimal places (some times i would get 10.5 when i want 10.50).

in my code i put a plus sign to convert it into a number.I believe this is what is causing the hundredth's place to be deleted. what is the best way to solve this problem?

       function randomGen(){
            return + (Math.random()*11).toFixed(2)
        }
         // console.log(randomGen())
         // some times i would get 10.5 when i want 10.50
        var num1 = randomGen(); // i want 10.50, for example not 10.5
        var num2 = randomGen();
        console.log(num1, " ", num2)

        console.log(+(num1 + num2).toFixed(2)) 

Thank you