## Basic Concept

Properties of integers:

**1. Closure property**

The operation of addition, subtraction and multiplication on integers will resulting an integers as well.

If a, b and c are integers, so the result of a + b × c is integers as well.

a + b × c ∈ Z

**2. Commutative property of addition and multiplication**

a + b = b + a

a × b = b × a

**3. Associative property of addition and multiplication**

(a + b) + c = a + (b + c)

(a × b) × c = a × (b × c)

**4. Distributive property**

a × (b + c) = (a × b) + (a × c)

a × (b − c) = (a × b) − (a × c)

**5. Identity property**

a + 0 = a

a × 1 = a

Kembali ke Properties of Integers