Mixed bag
What do you do first when using GEMDAS Multiplication or Addition?
Multiplication
Write 5 x 5 x 5 as an exponent
53
What comes first in the expression 6 + 3 x 2
Multiplication
Show two ways that multiplication is written now that we are in Pre-Algebra
1. using a dot
2. using parenthesis
3. having the numbers right next to one another
Rewrite 4 + x - 5 when x = 8
** Do not solve
4 + 8 - 5
What does the E in GEMDAS stand for?
Exponents
Solve - what is 23?
8
What should you do first in the expression (4 - 2)2
Parentheses (4 - 2)
Solve 24/x when x = 4
6
Evaluate the expression 3m + 2 when m= 5
17
Give an example of a variable
You can name any letter!
Write 74 using exponential notation
7 x 7x 7 x 7
What should you do first in the expression 8 - 23
Exponent (23)
What is/are the variables(s) in the expression
7x + 3y - 8 + 2z
There may be more than one.
x, y, z
Evaluate the expression 3(2x + 1) when x = 2
15
Who is the new Star basketball coach?
Lou!
In the expression 72 what is the large number (7) called?
Base
Find the answer: 32 + 2 x 4
17
Solve the expression 8s + 3t - 6, where s = 2 and t = 3
19
Evaluate the expression xy when x = 4 and y = 10
40
What is a variable?
A letter that represents a quantity or number
What is another word we use for the exponent of 2 in the expression 82?
'Squared'
Find the answer: 6 + 23 - 12
2
Solve x2 + 2x - 6, when x =4
18
Evaluate the expression 5x2 when x = 2
20