The additive identity property states that the sum of any number and zero is the original number. Zero is called the additive identity because adding it to any number yields the original number. Examples are provided such as 3 + 0 = 3, -7 + 0 = -7. Subtractions can be rewritten as additions by changing the operation to addition and making one addend negative, such as 3 - 15 can be written as -15 + 3. The additive identity property relates because a subtraction with a zero added remains the same, such as 15 - 3 + 0 = 15 - 3.

1. Additive Identity Property By: Kristina Chiev

2. What is it? The sum of any number and zero is the original number. The number zero is called the additive identity because the sum of zero and any number is that number.

3. Examples A + 0 = a 0 + a = a 9 + 0 = 9 0 + 9 = 9 -7 + 0 = -7 0 + -7 = -7

4. Section 1 Problem 4 Change the following subtractions to a addition problem 3 - 15 Answer is: -15 + 3

5. How I got the answer? The problem is 3 - 15. Since there is a minus in front of the 15 it’ll make it a negative since your taking away, so the problem would look like this (3)+(-15)

6. How it relates to Additive Identity Property Since Additive Identity Property is when you have add a number to 0 and the number you put in is also the answer. So you can put 15 - 3 + 0 is also the same as 15 - 3. Depending on the situation your in, you’ll need the 0 but in most simple math, the zero can be taken away to make it shorter. Ex. 2 + 4 + 0 = 6 To make it seem shorter just take the 0 away like this and the problem would look like this 2 + 4 = 6