Expressions, Equations, Exponents
Difference between an expression and an equation
Equations have equal signs
Expressions express mathematical ideas using numbers, operations and symbols
Equations are a mathematical sequence that uses an equal sign to show that 2 things have the same value
PEMDAS stands for...
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
What is a factor?
What is a multiple?
Factor - The numbers that multiply to a number
Multiple - A number that is made by multiplying a number by another number
Identify the following properties
A x 1 = A
A x 0 = 0
Identity Property
Zero Property
True of False (the / means division)
A/B = (A/C) / (B/C)
True
Define sum, difference, quotient and product
The result of an addition expression
The result of a subtraction expression
The result of a division expression
The result of a multiplication expression
True or false
When solving with PEMDAS we work right to left
False
We work left to right
What are the factors of 40?
1, 2, 4, 5, 8, 10, 20, and 40
Identify the following properties
2 x (3+4) = 2 x 3 + 2 x 4
(7 x 8) x 5 = 7 x (8 x 5)
Distributive Property
Associative Property
True or false (the / means division)
(2+4) / 2 = 2/2 + 4
False
(2+4) / 2 = 2/2 + 4/2
Write the following as a statement using exponents
5 x 5 x 5 x 2 x 2 x 7 x 7 x 6
53 x 22 x 72 x 6
(2+3 x 7) -2
21
What are the first 5 multiples of 18?
18, 36, 54, 72, and 90
5 x 8 x 2 x 6
480
126 / 9
14
Evaluate the expression for the following statement
The difference of fifty and the product five and nine
50 - (5 x 9)
5
3 + 52 - (4 + 22)
20
What is the GCF of 63 and 42?
21
5 x (8 - 4)
(5 x 8) - (5 x 4)
20
432 / 12
36
Evaluate the expression for the following statement
The difference of twelve and four times three
(12 - 4) x 3
24
((20 - 15)2 + ( 18 x 3)) + 2
81
What is the LCM of 30 and 12?
60
2 x (6 x 4) x 5 x 100
24,000
A recangle width 12 cm is divded into two smaller rectangles, A and B, with areas 60 and 108 respectively. Find the length of the rectangle
14 cm