Variables and Expressions
What is a variable?
A variable is a letter used to represent one or more numbers.
In 53, what number is the base?
5
What does E mean in PEMDAS?
Exponents
What is an integer?
They are whole numbers and can be either positive or negative.
If x = 5, what is x+5?
10
Write 2x2x2x2x2x2 as a power.
26
In this problem what operations would I do first?
12-4+3
Order from least to greatest.
-8, 0, -4, 2, 5, -6
-8, -6, -4, 0, 2, 5
If n=6 and m=10, what is nm?
60
Write 34 as a repeated addition problem
3x3x3x3
In this expression, what operations would I do first?
15-3(4)
Order from greatest to least
-9, -54, -19, -70, 25, 0
25, 0, -9, -19, -54, -70
What is the expression for the phrase?
The product of 72 and a number
72m or 72(m) or 72 x m or 72*m
If k=4 what is k3
64
32
What is |-42| + 7
49
If a=2.5 and c=3.5 what is (ac)/2
3
1,296
Solve 7[2.5+3(12-7)]
122.5
8