1. Warm Up
Pg. 36 #’s 1-30 EVEN ONLY

2. Objective: To add integers.
Copy into notes section;
Adding Integers With the Same Sign
Rule 1:   The sum of two positive integers
is a positive integer.
Step 1 – Add the absolute value of the numbers
Step 2 – Keep the sign the same.
Ex: 4 + 3
Step = 7
Step
Rule 2:   The sum of two negative integers
is a negative integer.
Ex: -5 + (-6)
Step = 11
Step

3. Adding Integers With Different Signs
Rule : To add a positive and a negative integer follow these steps:
Step 1 Find the absolute value of each integer.
Step 2 Subtract the smaller number from the larger number.
Step 3 The sum (answer) takes the sign of the integer with the larger absolute value.
Example 1: Find the sum of +7 and -4. (7 + -4)
Step 1:   |+7| = 7 and |-4| = 4
Step 2:   7 - 4 = 3  
Step 3:   The number 3 will take a positive sign since +7 is farther from zero than -4.
Solution: = 3

4. Example 2: Find the sum of -9 and +5. Step 1: |-9| = 9 and |+5| = 5
Step 3:   The number 4 will take a negative sign since -9 is farther
from 0 than +5.
Solution: = -4
Example 3: Find the sum of +6 and -7.
Step 1:   |+6| = 6 and |-7| = 7
Step 2:   7 - 6 = 1
Step 3:   The number 1 will take a negative sign since -7 is farther
from 0 than +6.
Solution: = -1

5. SAME SIGNS, KEEP & ADD.
DIFFERENT SIGNS, SUBTRACT.
TAKE THE SIGN OF THE LARGER NUMBER, THEN YOU’LL BE EXACT!

6. DIFFERENT SIGNS, SUBTRACT.
You Try It!
Turn to pg. 42
With a partner complete #’s ODD ONLY
REMEMBER;
SAME SIGNS, KEEP & ADD.
DIFFERENT SIGNS, SUBTRACT.
TAKE THE SIGN OF THE LARGER NUMBER, THEN YOU’LL BE EXACT!

7. Adding Integers BINGO Rules: All black numbers are + Red numbers are –
Add 24 integers to your bingo board.
* 12 need to be positive and 12 need to be negative.
* The integers need to range from -20 to 20
Rules:
All black numbers are +
Red numbers are –
First one to get Bingo wins!
Steps:
1)Add the two integers together.
2) If you have the sum on your board cross it off.
3) First one to cross off 5 in a row wins!