Review 1
What is the term for this: a number that you get from a multiplication problem?
product
7 + 8 = 15 ; 15 is the what?
What property is this? 5 x 3 = 3 x 5
Commutative
What is equivalent expressions?
Two expressions equivalent to each other
Distribute this: 7(t + r)
7t + 7r
I need to ___________ the pizza slices to the students.
distribute
20 / 5 = 4 ; 4 is the what?
What property is this? (3 + 9) + 2 = 3 + (9 + 2)
associative
Define exponents.
Number that informs how many times to multiply a number by itself
Solve: 32
9
4 x 6 = 24 ; 4 is a what?
a factor
Name the term(s): 8a - 3 + b
8a, 3, and b
What is distributive property?
Dividing the numbers and/or variables.
P (parenthesis)
E (exponents)
M (multiplication)
D (division)
A (addition)
S (subtraction)
Find the missing variable: 56 + f = 70
f = 14
This is what? 2(x - y) + 9(3x) = 2x - 2y + 27x
expand
Name the variable: 50t + 9 = 59
t
What is commutative property?
Numbers can be moved or swapped from their position without affecting the answer
What is the difference between an expression and an equation?
Equations are answered, expressions are not
10 x 60
You would call this 90 + 10 = 100 what?
Number Sentence
What separates two expressions in an equation?
= (equation sign)
What is associative property?
The way numbers are grouped by brackets, does not affect the answer.
Why do we use PEMDAS?
As a way to solve math problems accurately and stay organized
Using PEMDAS, solve: 62 - 2(5-1)2+1
62 - 2 (4)2 + 1
62 - 2 (16) + 1
62 - 32 + 1
30+1
31