Math Signs and Symbols
This symbol +
What is addition?
The P in PEMDAS
SOLO CHANCE:
Jan works 5 dollars every hour -- an expression of her situation where x represents the hours worked
What is 5x?
What you must do when multiplying a negative times a negative
What is make it positive ? What is change the signs?
SOLO CHANCE:
To solve x + 8 = 12
What is subtract 8 on both sides?
This symbol -
What is subtract (minus)?
SOLO CHANCE: The E in PEMDAS and what it means in the example 42
What are exponents? 16 (4 * 4)
Davide earns 10 per hour plus 150 dollars starting. The amount he earns after a 40 hour work week
What is 550?
What you must do first in the order of operations
What is Parenthesis?
To solve 4x=20
What is divide by 4 on both sides?
This symbol * and also x (but not in algebra)
What is multiplication?
The M and D in PEMDAS
What is multiplication and division?
SOLO CHANCE
True or False:
Monica works for 25 dollars an hour. After a 50 hour work week, she can afford to pay her 800 dollar rent.
What is false, no she can't?
What you must do next to complete the expression x2+5x+7x+15
What is combine like terms?
To solve x/6 = 7
What is multiply by 6 on both sides?
SOLO CHANCE: This operation can also be written as a fraction. I.E. 25/5 is the same as 5
What is division?
The A and S in PEMDAS
What is Addition and Subtraction?
Jason Vorhees' blade breaks after killing 10 teens. If Jason murders 2 teens per hour, how many hours can he 'work' before his blade breaks?
What is 5 hours?
SOLO CHANCE:
To factor the polynomial x2+10x+25, you MUST look for factors of this number that add to this number
What is factors of 25 that add to 10?
SOLO CHANCE: Might be two steps to simplify 4(2x+5)
What is distribute the four to the 2x and the 5 by multiplying it to both
SOLO CHANCE:
This symbol pair ( ) illustrates what type of property? OR means what for example 3(x+5)
What is distributive property?
SOLO CHANCE:
When you have both multiplication and division, or addition and subtraction you have to go *blank* to *blank* (ignore PEMDAS)
What is go left to right?
Michael Myers can only create fear in Laurie Strode if he is at least 100 miles away from her. If Laurie is 150 miles away, how much does Michael have to travel to create fear in Laurie?
How much is 50 miles?
What you MUST do first if given an expression such as 3x+4 when x=-8
What is replace or substitute the variable for -8 , with parentheses around it
The angles in the triangle add to this number
What is 180