Difference
Subtracting is the same as adding the _______.
So, 15 - 13 = 15 ___ _____
the opposite
+ - 13
What is the distance between -7 and 5 on a number line?
Withdraw means to add a ______ to your account.
negative
25 + _____ = 0
-25
Absolute value means ...
distance from zero and is always positive
19 - 25
= -6
Saad lives 9 blocks NORTH of school. Fatou lives 12 blocks SOUTH of school. How far do Saad and Fatou live from each other?
21 blocks
Jonathan starts with $45 in his account. He withdraws $21 for groceries, but then deposits $55 he earned babysitting. Write an expression to represent the scenario.
45 +-21 + 55
19 + 21 + 7 + ______ = 0
-47
|12| =
12
-22 - (-34) =
12
In Antarctica, it was -11 degrees Fahrenheit this morning. In New York, it was 59 degrees Fahrenheit this morning. How much warmer is it in NY than in Antarctica?
59 - -11 = 59 + 11 = 70 degrees warmer in NY
Remi starts with $203 in his account. He withdraws $350 for a new iPhone, but then deposits $207 he earned coaching youth football. How much money is in his account at the end of the day?
$203 + -$350 + 207
203 + 207 = 410 dollars (commutative property)
410 + -350 = 60 dollars in his account!
-16 + 23 + -4 + _______ = 0
-3
|15 + -20| =
|-5| = 5
What is the difference between -16 and - 24?
8
The aliens are 225 feet above sea level and the sharks are 65 feet below sea level. The mountain lion is 75 feet above sea level. Is the mountain lion closer to the sharks or the aliens?
Aliens: |225 - 75| = 150 feet
Sharks: |-65 - 75| = |-140| = 140 feet
The Sharks are closer to the aliens!
Adelaida has $150 in her account. She withdraws $170 to buy a new iPhone. She wants to have $20 in her account tomorrow. How much money must she deposit?
150 + -170 = -20
If she has -$20 and she wants $20, we need to find the distance between -20 and 20.
|20 --20| = |20 + 20| = 40
43 + -21 + ________ = 30
8
|-13 - 19| =
|-32| = 32