If "+" means "minus", "$\times$ " means "divided by", "$÷$ " means "plus" and "-" means "multiplied by", then find the value of:
$$300\times 10-5+36÷57=?$$

Substitute the signs according to the given rules:$\times \to ÷$$-\to \times$$+\to -$$÷\to +$ Rewriting the expression:
$$300÷10\times 5-36+57$$
Now, solve using BODMAS rules:Division: $300÷10=30$ Multiplication: $30\times 5=150$ Addition and Subtraction: $150-36+57=114+57=171$ Therefore, the answer is 171.