Show:
Can you do that?
How can you do that?
Are you for Real?
What are you saying?
Anything Goes!
100
True or False: x - 5 = 5 - x
False, subtraction is not commutative.
100
This property being displayed here d + f = f + d
What is the Commutative Property of Addition?
100
All of the following are examples of 8, -3, 0, 1.333..., 3/4, -2.5
Rational numbers or real numbers
100
Express as an algebraic expression: 12 subtracted from a number
x - 12
100
A function that has several pieces.
What is a piecewise function?
200
True or False: a + 0 = 0 + a
True, 0 is the additive identity.
200
This property being displayed here 5 * 1/5 = 1
What is the Inverse Property of Multiplication? (Multiplicative Inverse)
200
Give an example of an irrational number?
200
Express as an algebraic expression: 4 less than twice a number
2x - 4
200
Write the ratio of boy students to girl students in this room, in 3 different ways.
to, :, /
300
True or False: (62 * 32)a = 62(32a)
True by Associative Property of Multiplication
300
This property being displayed here (9 * 2) - (7 * 2) = (9-7) * 2
What is the Distributive Property?
300
Name a Whole Number that is not a Natural Number.
0
300
Express as an algebraic expression: Four times the sum of 7 and a number
4(x +7)
300
What is the symbol used for integers?
Z - Zahlen (German word for number)
400
True or False: a + (b + c) = (a + b) + c
True by Associative Property of Addition
400
This property being displayed here a + (b + c) = (b + c) + a
What is the Communative Property of Addition?
400
This number's additive inverse is a whole number: a. -2/3 b. 0 c. 1/x
b. the additive inverse of 0 is 0.
400
Express as an algebraic expression: The quotient of 6, and a number increased by 4
6/(x + 4)
400
At the homecoming carnival and dance, 150 students arrived from 6:30 to 7pm. From 7pm to 8pm, another 150 students came. From 8 to 9, everyone stayed and had a good time. All the students left within half an hour after it's over. Sketch a graph that shows the number of students at the homecoming carnival and dance versus time.
answer is a graph
500
True or False: z * x/x = Z
True by Identity Property of Multiplicaton
500
Does the commutative property hold true for subtraction? Justify your answer.
No 8 - 5 does not equal 5 - 8
500
This number's multiplicative inverse is a whole number: a. -2/3 b. 0 c. 1/x
c. The multiplicative inverse of 1/x is x. (Note: 0 doesn't have a multiplicative inverse.)
500
Express as an algebraic expression: Triple a number decreased by the quotient of 12 and that number
3x - 12/x
500
Dee Septor, the famous magician, claimed to be able to throw a ping-pong ball so that it would go a short distance, come to a complete stop, and then reverse itself. He also added that he would not bounce the ball off any object, or tie anything to it. How could he perform this trick?
He threw the ball straight up in the air!