Add Me!
Find the sum
(-6)+(+18)
12
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
3 - (-9) =
12
+3 and -3 are called....
opposites
If we subtract 0 from any integer, the answer will be the ______
-14 + -8 =
=-22
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
-19 - ( 15) =
-34
? - (-6) = +10
4
(-3) - (-9)
+6
-40 + (25) =
-15
Adding Integers: Stephanie has $152 in the bank. she withdraws $20 then deposits $84 in an addition expression to represent this situation find the sum.
216
? + (-6) = 4
10
When you find a sum you are ________.
When you find the difference you are _____________.
Adding
Subtracting
When adding integers with different signs...
a) If there are more negatives than positives the answer will be positive
b) If there are more positives than negatives the answer will be positive
c)If there are more negatives than positives the answer will be 0
b
-5 + (4) - 7
-8
Subtracting Integers: 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 an Integer?
A whole number that can be negative or positive
Subtracting a negative integer is like...
a) adding a positive integer
b) adding a negative integer
c)subtracting a positive one
a
(-58)+(-12)
-70
Subtracting Integers: An airplane takes off and then climbs 2500 feet. After 20 minutes, the airplane descends 150 feet. What is the airplane's current height?
2350 ft.
-32 - (-14) =
-18
BOOM! Challenge question:
Using only addition, add eight 8s to get the number 1,000.
888 + 88 + 8 + 8 + 8 = 1,000
-22 - 6
-28