Vocabulary
True or False: The absolute value of a number can sometimes be negative?
False
8 units
2 + 3
2 - (-3)
2 - (-4)
2 + 4
Which paid shows equivalent expressions:
a.) -18 - (-3) and 3 + -18
b.) 2 - 5 and -2 + 5
c.) 9 - (-3) and -3 + (-9)
A
What is the vocab word for 2 numbers whose sum is zero?
additive inverse
What is the distance from - 123 to -100
23 units
-4 + (-3)
-4 - 3
-5 - 7
-5 + (-7)
-8 - 3 = ______
-11
The set of whole numbers and their opposites can be called?
Integers
True or False: When finding the distance between 2 numbers on the number line the bigger number should be written first.
False
-2 + 5
8 - 9
8 + (-9)
Ms. Mckillip is playing a game. At the end of the first round she has 5 points. During the second round she loses 9 points. Which expression represents the total number of points Ms. Mckillip has at the end of the second round?
5 + (-9) OR 5 - 9
Numbers that are the same distance from 0 on the number line
opposite numbers
What is the distance from -13 to 9?
22 units
-80 + -77
-80 - 77
-94 - (-321)
Mrs. King makes and sells cookies. She made a profit of $20 last week. This week she burnt all her cookies and her profit was -$9.
What is the difference between last weeks profit and this weeks profit?
20 - (-9) = 29
Expressions that look different but have the same outcome can be called?
Equivalet Expressions
What makes it to where the order of 2 numbers does not matter when finding the distance between 2 numbers on a number line
absolute value
-1258 + 9437
-1258 - (-9437)
6324 - 821
6324 + (-821)
Mrs. King makes and sells cookies. She made a profit of $20 last week. This week she burnt all her cookies and her profit was -$9.
Write a subtraction expression to find Mrs. Kings total profit at the end of the two weeks.
20 - 9