Math Devil: A Troll Level Game

Dare you win this HARD MATH levels?
-Impossible to pass all levels: 40 normal, 2 nightmare
-Simple 2d platform but with math puzzles, not easy to win without thinking
-Many traps here, be careful

[Levels]
Primary School:
-Comparison Operators
-Addition, Subtraction, Multiplication, Division
-Order of Operations
-Decimal
-Fraction
-Negative Number
-Variable
-Function

If your hands and brain are ready, good luck to you!