Math Potpurri
Adding Rational Numbers
Subtracting Rational Numbers
Vocabulary
Potpurri
True or False? Justify.
Everything Multiplication
100
2 part question:
Part 1 - what is the sign of the sum of 2 negative numbers?
Part 2 - what is the sign of the sum of 2 positive numbers?
Part 1- Negative
Part 2-Positive
100
-130 + (-65)
-195
100
7-2-5
0
100
Whole numbers and their opposites.
integers
100
Name this soccer player
Who is Messi
100
The sum of two negative integers is always positive.
False because...you are to the left of zero and go more negative.
100
What is 6 x 7 ?
What is 42
200
DOUBLE JEOPARDY!!!!
How do you know what sign will be for the sum of a negative and positive number?
The answer will have the same sign as the number with the greatest absolute value.
200
-6 + 3 + (-2)
-5
200
-8 1/2 - 4
-12 1/2
200
Numbers greater than zero
positive integers
200
Name this clown.
Pennywise
200
An integer and the absolute value of that integer are always opposites.
False because...
6 and the absolute value of 6 are not opposites
Only sometimes true if negative signs are used in the problem
200
What do we call the answer to a multiplication problem?
What is a product
300
How do we subtract rational numbers?
We add the opposite
300
-7/4 + (-5/2)
What is -4 and 1/4 OR -17/4
300
3.77 - (-9.9)
What is 13.67
300
DOUBLE JEOPARDY!!!!!!!!!!!
Any number that can be written as a fraction
Rational number
300
What film features the character Jack Skellington?
What is The nightmare Before Christmas
300
Subtracting negative numbers will always be negative
False
300
7 x 2 x 3
What is 42
400
Two submarines are underwater. The number −4,451 represents Submarine A's position (in feet) relative to the surface. The number −4,979 represents Submarine B's position (in feet) relative to the surface. Which submarine is closer to the surface?
Submarine A
400
Find the sum 10.43 + (-2.5)
what is 7.93
400
-1.84 - (-6.3)
4.46
400
What are additive inverses?
what you add to a number to get zero
400
Why were pumpkins originally used as Jack-O’-Lanterns?
To scare away evil spirits
400
True or False? - | -10| = -10
true
|-10| = 10
However, don't forget the negative sign outside the absolute value.
Therefore, - |-10| = -10
400
Gino's cuts each pizza into 8 slices. Principal Lopes bought 98 pizzas from the pizza place. How many slices did he purchase? Give the multiplication sentence with the answer
98 x 8 = 784
500
What is the distance between -130 and -180
what is 50
500
-5 3/6 - (-10 2/3)
What is 5 1/3
500
-4 4/5 - (-6 2/5)
8/5 or 1 and 3/5
500
What is absolute value?
Absolute value is the distance between 0 and a number
500
What is the name of the supernatural serial killer in the “Halloween” movie franchise?
What is Michael Myers
500
-10 - (-5) - (-3) = -18
False
500
Ms. Mbaye collected 12 coins each day. How many coins did she collect in 36 days? Give the multiplication sentence with the answer
What is 432