Find the sum
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
What is the rule for adding integers?
a) The answer is always positive
b) Add the opposite
c) Add the integers
c
-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 subtracting integers you...
a) Subtract and keep the sign of the smaller number
b) Subtract and keep the sign of the higher number
c) To subtract a number, add the opposite
c
-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
What is the magnitude of:
a) -43
b) 98
a) 43
b) 98
(-8)+(-12) - 5 -2
-27
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
Arrange the number from smallest to largest:
-3, -4, -1, -23
-23, -4, -3, -1
-22 + 24 -6
-4