# Aditive Identity Definition

In mathematics, an **additive identity** is defined as **value when added to any digit or number,** the **resultant answer will be the same real number** **added **with the **value of additive identity**.

As it is clear from the definition, the only number which gives the same value in result when added to any real number is zero (0). For instance, if 8 is added to 0, then the resultant answer will be 8+0 = 8.

If we add any negative real number like -10 with 0, we will get the same real number in the answer, -10+0 = -10. Hence it is proved that the additive identity = 0.

**Note:**

To know about amplitude, you can use our Amplitude Definition.