Adding and Subtracting Integers Get Ready for Some Fun!!!!!

Step 1 Example: -8 – 3 = ? First you must always look to see if you are being asked to add or subtract the integers. If you are being asked to add move directly to step 3. If you are being asked to subtract continue on to step 2. In this example, we are being asked to subtract so we will continue to step 2.

Step 2 -8 – 3 -8 + (-3) This step is called KCO. You need to keep the first integer the same, Change the subtraction sign to addition, And change the second integers sign to its opposite sign. (If it is a positive number, make it negative and if it is negative, make it positive) -8 – 3 -8 + (-3)

Step 3 Look at the integers to determine which operation you will use. If they have the same sign, (both positive or both negative), you will add the numbers together. -8 + (-3) = -11 But… -8 + 3, we will subtract because these do not have the same signs.

Step 4 Now that you know the number, you need to see if the answer will be positive or negative. Your answer will take the sign of the larger whole number. Ex: -8 + 3 = (8 - 3 = 5) 8 > 3 and the 8 is negative, so your answer will also be negative. -5