5003 Math Praxis Cards
commutative property of multiplication
you can multiply numbers in any order
If b is a real number, which of the following shows the commutative property of
multiplication?
A. (65) (c) = (65) (c) + (3) (x)
B. (65) (c) = (c) (65)
B. (65) (c) = (c) (65)
Statistical Question
a question that can be answered by collecting data; there will be variety in the
data collected.
Which of the following is an example of a statistical question?
Select ALL that apply
A. How many times did the class get a B average on the spelling test during the
month of December with one test a week?
B. What is two plus two?
C. How many times did Kayla say "like" in her speech on her final exam?
D. How many times did students say "like" on presentation day at Lakeshore
school?
A,D
A- collecting data with variability in data
B- no variability
C- no variability
D- collecting data with variability in data
, 3x-9
algebraic expression
(made of constants, variables, and algebraic operations).
3y<9
algebraic inequality
3z=9
algebraic equation
3+9
numerical expression
If y=2, what is the value of 4-2 (4y) + 5y?
-2
Substitute 2 in the place of y to get
4-2(8)+10
Using the order of operations be sure to multiply 2 and 8 first giving you
4-16+10= -2
At a shoe store there are 5 different types of shoes: Nike, Adidas, Jordan,
Reebok, and Vans. All five shoes come in only three sizes 8,9, or 10. If one kind
of shoe and size of shoe are to be selected at random, what is the probability that
the show will be an Adidas size 9?
1/15
There are 15 possibilities (5 kinds of shoes times 3 sizes), so the probability of
selecting an Adidas size 9 is 1 out of 15 or 1/15.
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