Sum (+) of Integers
Find the sum
4 + (-20)
-16
Adding Integers: 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
Numbers that are the same distance from zero but on the different sides of zero on the number line
a) different integers
b) opposite integers
opposite
20 + (-15)
5
-12 + 5 =
=-7
Adding Integers: 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
Who lives in a pineapple under the sea?
Negative numbers
-10 + -8
-18
-6 + (-17) =
-23
Adding Integers: Stephanie has $152 in the bank. She withdraws $20 then deposits $84 How much money is in her bank account?
216
When you find a sum you are ________.
When you find the difference you are _____________.
Adding
Subtracting
14+ (-3)=
11
-5 + (-19) + 5
-19
You are 5 dollars in debt. You borrow 12 dollars more. What is the total amount of your debt?
You owe 17 dollars
(-17)
What is the name for a negative or positive whole number?
Integer
-13 + 15=
2
-8+ (-4)+12
0
An airplane takes off and climbs to 25 feet. After 20 minutes, the airplane descends 20 feet. What is the airplane's current altitude?
5 ft.
What do you get when you add or subtract two opposite integers together?
Zero Pairs
22 + (-19)=
3