Sum (+) of Integers
Find the sum
4+20
24
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
Ascend, deposit and surplus are _________ integers?
Positive
What is the rule for adding integers with the same sign?
a) The answer is always positive
b) Add the opposite
c) Add across and keep the sign
c
-12 + 5 =
=-7
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
The distance a number is from zero is...
What is absolute value?
What are the rules for subtracting integers?
a) Add the opposite then follow addition rules
b) Subtract the absolute value and keep the bigger number
c) Subtract and keep the sign
a
-16 + (-17) =
-33
Stephanie has $152 in the bank. She withdraws $20 then deposits $84. How much money does she have in the bank?
216
71 - (-14) =
85
When you find a sum you are ________.
When you find the difference you are _____________.
Adding
Subtracting
When adding integers with different signs you...
a) Subtract and keep the sign of the smaller number
b) Subtract and keep the sign of the higher number
c) Subtract then add
b
-5 + (5) - 19 =
-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)
-14 - (14) =
-28
A whole number, including zero, that can be negative or positive is...
What is an Integer?
Subtracting a negative integer is like...
a) adding a positive integer
b) adding a negative integer
c) subtracting a positive one
a
-8+(-4)+12
0
A bird is flying at an elevation of 28 feet above sea-level. A fish is swimming directly below the bird at an elevation of -9 feet. What is the distance between the bird and the fish?
37 ft.
-32 - (-14) =
-18
The same number that when added together equals 0 because they are opposites.
What is an additive inverse?
When adding an integer and its opposite, you get...
a) a positive number
b) zero
c) a negative number
b