This website offers many math games that allow you to practice arithmetic calculations, here is a selection of the best online math games 9th Grade available.
Quiz solving inequalities with one unknown (9th Grade)
Quiz on calculating with square roots (9th Grade)
Game expression expansion (9th Grade)
Countdown game (9th Grade)
Quiz on the Pythagorean theorem (9th Grade)
Quiz on the calculation of the GCD (9th Grade)
Irreducible fraction of an expression (9th Grade)
Factorization game using remarkable identities (9th Grade)
Quiz on algebraic calculus (9th Grade)