Sum (+) of Integers
Find the sum
4+16 =
20
What is the absolute value of |-48|?
48
A football team loses 5 yards on one play and then loses 8 yards on the next play. How many yards did they lose on the two plays?
They lost 13 yards
-13
3 - (-9) =
What are opposites?
A negative number and its positive
-12 + 5 =
=-7
What is the absolute value of |92|?
92
You park in a garage 3 floors below ground level. Then you get in the elevator and go up 12 floors. What floor do you get off the elevator?
9th floor
-19 - ( 15) =
-34
What is absolute value?
The distance from zero
-16 + 17 =
What is the absolute value of |-12|?
12
Stephanie has $15 in the bank. She deposits 4 dollars into her account. Use an equation to represent this situation and find the sum.
15 + 4 = 19
71 - (-14) =
85
When you find a sum you are ________.
When you find the difference you are _____________.
Adding
Subtracting
-5 + (-13) =
-18
-5 ____-10
> Greater than
You are 5 dollars in debt. You borrow 12 dollars more. What is the total amount of your debt?
You owe 17 dollars
(-17)
-14 - (14) =
-28
What is the rule for subtracting integers?
Keep, Change, Change
-8+(-4) =
-12
Put in order from least to greatest
-2, 10, -4, 3
-4, -2, 3, 10
One morning in Cullowhee, the temperature was 19 degrees Fahrenheit. The temperature over night reached -5 degrees Fahrenheit. What is the total change between the morning temperature and the night temperature?
24 degrees
-18 - (-14) =
-4
What are your two addition rules? What does each rule say?
Different Signs: Use the sign of the larger absolute value and subtract the absolute values