Associative property

In mathematics, in an expression containing two or more associative operators the order the operations are performed does not matter as long as the sequence of the operands is not changed.

(2 + 3) + 4 = 2 + (3 + 4) = 9
2 x (3 x 4) = (2 x 3) x 4 = 24

Commuative property

In mathematics, a binary operation is commutative if changing the order of the operands does not change the result.

4 + 3 = 3 + 4
2 x 5 = 5 x 2

There are operations, such as division and subtraction that are noncommutative.

3 − 5 ≠ 5 − 3

Operand and operator

In mathematics, an operand is a quantity operated on. The operator does the operation.

3 + 6 = 9

3 is an operand and + is an operator.