## Presentation on theme: "Adding INTEGERS Adding Integers Blues Song - By Mr. W."— Presentation transcript:

Definition Reminders Opposite Integers – 2 integers with the same numeral but different signs. Example: 5 and (-5) are opposite integers Zero Principle/Model – The sum of opposite integers is zero Example: 3 + (-3) = 0

Example: 5 + (-6) = ? Place the first set of integer chips together (+5). Add the second set of integer chips underneath (-6) Remove the zero pairs Tiles you have left is the answer 5 + (-6) = -1

Complete the following steps for each question below: Using integer chips, find the sum for each. Draw the solution in your notes (shade for negative chips) Write the equation and your answer. -2 + (-6) = ? 5 + (-5) = ? 7 + (-3) = ?

As a class, write the addition statement for the set of chips, and use a number line to solve.

Complete the following steps for each question below: Using number lines in your notes, find the sum for each. Write the equation and your answer. -2 + (-6) = ? 5 + (-5) = ? 7 + (-3) = ?

Take a look at the questions where the integers have the same sign. Can you come up with a rule? Take a look at the questions where the integers have the opposite sign. Can you come up with a rule?

If the signs are the same (all negative or all positive), keep the sign and add the numbers. If the signs are different, take the sign of the larger number, and then subtract the numbers (find the difference). Khan Example (Vid)