Generalise the properties of operations with fractional numbers and integers

1.		Classic Catches - Expand an algebraic expression
2.		Classic Catches - Expand an algebraic expression
3.		Classic Catches - Expand an algebraic expression
4.		Classic Catches - Expand an algebraic expression
5.		Alien Algebra - Are two algebraic expressions equivalent?
6.		Alien Algebra - Are two algebraic expressions equivalent?
7.		Alien Algebra - Are two algebraic expressions equivalent?
8.		Alien Algebra - Are two algebraic expressions equivalent?
9.		Sam Simplifies - Simplify an algebraic expression
10.		Alien Algebra - algebraic expression, true/false
11.		Alien Algebra - algebraic expression, true/false