Expressions
Equations
Inequalities
Vocab
Extra
100
simplify 5(5)(5+2)
175
100
What kind of operations do we use to isolate the variable ie. If the problem adds I need to subtract
inverse operations
100
All inequalities are solved just like equations EXCEPT FOR ONE THING... What is the one exception?
When I multiply or divide by negative numbers the comparison sign changes direction
100
What is an expression
a Number sentence that doesn't contain an equal sign
100
What is fifteen squared?
225
200
Simplify 3(3-4) -7 + 8
-2
200
2.1x = 25.2
x = 12
200
5y > 1225
y > 245
200
What is a equation
A number sentence that contains a equal sign stating two qualities are equal
200
On Monday morning the temperature started at -24 degrees. Then increased by 32 degrees by noon. What temperature was it at noon?
8 degrees
300
Simplify 2x -(5x +9)
-3x - 9
300
3x + 15 = 21
x = 2
300
x/3 +125 < 25
x < -300
300
What is an inequality
A number sentence that state two qualities are not equal
300
- l2+(-3)l =??
-1
400
Tim wrote an expression to represent the sum of a number and twice another number. What did Tim write?
x + 2y
400
1/3x + 2 = 1
x = -1 1/3
400
-12s - 34 > 110
s < -12
400
Define absolute value
How far a number is away from the origin on a number line
400
Mr. T went buy markers after class at Wal-Mart. A pack of 3 markers was $5. He need atleast 20 markers. How many packs did he have to buy?
7 packs
500
Simplify 2x + 3 - 4y +3x +(8x -9y) + 4
13x - 13y + 7
500
Fred had 169 dollars to spend on 6 books. After buying them he had 13 dollars left over. How much did each book cost?
26 dollars
500
3 + 6p < 45
p < 7
500
In word problems the phrase "at least" means what sign?
Greater than or equal to
500
To go on a field trip 125 students must sign up and pay their 10 dollars. How much money is needed to go on the field trip?
1250 dollars
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