Unit 1
Order of Operations
What is PEMDAS? (Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction)
Use substitution: 5 + y ; y = 15
What is 20?
This variable depends/changes based on another variable
What is dependent variable?
Use substitution to evaluate the expression: 15.9 + .214
What is 16.114?
The number being divided is called
What is dividend?
A letter that represents a quantity or change
What is a variable?
Solve the equation 5 + c = 15
What is 10?
Round each number to the nearest whole and estimate the answer: 4.38 + 9.179
What is 4 + 9 = 13?
Round 317.78 to the nearest whole number
What is 318?
The number of parts we are dividing a number
What is divisor?
What is 371?
Operations that are opposite of one another and used to "undo" math
What are inverse operations/relationships?
The carnival cost $3 to get in for the day. Each ride ticket (t) cost $2 to ride. Write an equation to represent the cost.
What is 3 + 2(T) = C
Show how to find the product of 16.2 x 4 using addition
What is 16.2 + 16.2 + 16.2 + 16.2?
Solve 52
What is 5 x 5 = 25?
Combine like terms: 2x + 3y + 6x
What is 8x + 3y?
Solve 20y = 100
What is 5?
This variable changes/impacts another variable
What is independent variable?
110.1 x 2.5
What is 275.25?
The inverse of addition
What is subtraction?
Is 2 + 1 + 2x equal to 3 + x + x?
Yes.
P < 50
What is P is less than 50?
What is the rule/pattern for this table:
X: 1, 4, 7, 8, 9
Y: 3, 12, 21, 24, 27
What is y = 3x or multiply x by 3 to get y?
A train has 3 engines and 30 boxcars. At every stop it picks up 2 boxcars. The amount of boxcars it will have after 5 stops
The inverse of multiplication
What is division?