PA-U1.2 Lesson: Operations with Integers

Open Ended

Warm-Up: Learning Log!

Describe what you remember from our class yesterday.

Unit 1: Lesson 2.2.1 Order of Operations with Integers

Positive or negative whole number.

​Integer

Concepts:

​Procedure:

1) If adding terms with the same sign add the numbers and keep the sign. For example: 3 + 5 = 8 or -2 + -5 = -7
2) If adding terms with mixed signs subtract the numbers and keep the sign of the larger number. For example: -8 + 5 = -3
3) When multiplying or dividing mixed signs are negative, and same signs are positive. For example: 6 x -3 = -18 or -4 x -5 = 20

Example 1:

Example 2:

Example 3: