Vocabulary
Part of Math that uses letters to represent unknown quantities; helps represents math situations
What is Algebra
5+ a = 17
12
A number, a variable or a combination of numbers, variable and operations; one side of an equation
What is an Expression?
Mike has to gain weight to reach his goal of 230 pounds. He is currently 165 pounds. Write an equation and solve it to show how much weight he needs to gain.
165 + w = 230
w = 65
43
64
A letter that represents an unknown
What is a Variable
-2b + 10 = -14
b = 12
A statement that 2 expressions are equal; MUST contain a equal sign
What is an Equation?
Tianna is listening to some music on a record for an unknown amount of time. She starts to keep track of the time and listens for an additional 7 minutes before the record is over. She spent a total of 35 minutes listening to the entire record. How long was she listening before she tracked the time?
x + 7 = 35
x= 28
x/2 - 5 = -1
x= 8
A math processes used to calculate
(add, subtract, multiply, divide)
What is an Operation?
(3/5)b = 15
b = 25
A statement that 2 expressions are NOT equal; contain inequality symbols > < ≥ ≤
What is an Inequality?
NH Scholars went on a field trip. 25 students went on each bus and 7 extra students went in the van. If 132 students went on the trip all together, how many buses were taken?
25b + 7 = 132
b = 5
4 (x + 3) - 2 = 6
x= -1
Representation of a situation using math concepts like equations
What is a Model?
a/3 = 12
a = 36
A limit or restriction
What is a Constraint?
Max has twice as many apps as Amy. If they have 36 apps all together, how many apps does Amy have?
2a + a = 36
a= 12
6x + 3 = 2x - 13
x = -4