Sum (+) of Integers
NO CALCULATORS
NO CALCULATORS
Find the sum
(4)+(-20)
-16
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
What are opposites?
two numbers that are the same distance from zero/have the same absolute value
OR
when added together, they equal zero
What is the rule for adding integers with the same sign?
a) The answer is always positive
b) Add the opposite
c) Add and keep the sign
c (Add and keep the sign)
What is the absolute value of |-48|?
48
-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
What is absolute value?
A number's distance from zero
What are the rules for subtracting integers?
a) Add the opposite then follow addition rules (additive inverse)
b) Subtract the absolute value and keep the bigger number
c) Subtract and keep the sign
a (Add the opposite then follow addition rules (additive inverse))
What is the absolute value of |92|?
92
-16 + (-17) =
-33
Stephanie has $152 in the bank. She withdraws takes out) $20, then deposits (puts in her account) $84. How much does Stephanie have in the bank after this?
$216
17 - 42 =
-25
When discussing elevation, what integer does sea level represent?
zero
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 bigger number
c) Subtract the absolute value then add
b (Subtract and keep the sign of the bigger number)
What is the absolute value of -|12|
-12
-5 + (5) - 19 =
-19
You are 5 dollars in debt. You borrow 12 dollars more. Then you make 35 dollars shoveling snow in your neighborhood. Write the amount you have or owe as an integer.
18
-14 - (9) =
-23
What are integers?
Positive and negative whole numbers
OR
all whole numbers, including zero, and their opposites
Subtracting a negative integer is like...
a) adding a positive integer
b) adding a negative integer
c) subtracting a positive one
a (adding a positive integer)
>, <, or =?
|9| ____ |-17|
< Less than
(9 < 17)
-8+(-4)+12
0
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
What are factors?
numbers that when multiplied by one another make a product
When adding multiple integers, what is a smart way to solve...
a) find additive inverses
b) add similar signs first
c) look at the signs
d) all of the above
d (all the above)
Simplify
| -15+4-11-10 |
32
-15+4-11-10
-32
The temperature in the morning was -12 degrees and by the 3:00 PM it had risen 39 degrees. What is the temperature at 3:00 PM?
27 degrees
986 - 1245 =
-259
What is the additive inverse of 5?
5's opposite, which is -5
Which of the following foods does Mr. M believe should NEVER make it onto a pizza?
a) anchovies/fish
b) pineapple
c) pickles
d) all the above
d! (all the above!)
What are the possible values for x if |x|=7?
-7 or 7