Vocabulary
Simplify Expressions
Two Step Equations
Diagrams
Percentages
100
This type of math problem has no equal sign.
Expression
100
Simplify:
3(x+2)
3x + 6
100
Solve for x:
2x + 1 = 5
x=2
100
Solve x for A and B
A. x=3
B. x=6
100
What is 50% of 125?
75
200
This type of math problem has an equal sign.
Equation
200
Simplify
-4 (m + 9)
-4m - 36
200
Solve for x:
x/3 - 4 = 11
x=5
200
Write an equation for Diagram A and solve.
5x + 10 = 120
-10 -10
5x = 110
÷5 ÷5
x = 22
200
What is 18/30 as a decimal and as a percent?
.6 or 60%
300
Another word for numbers used in expressions and equations
Constant
300
Simplify
9x - 3x
6x
300
Solve for x:
2x - 5 = 11
x=8
300
Draw a tape diagram and solve:
Wendy went to the store. She bought 3 boxes of cereal each weighing the same. If she spent $12 in total, how much was each box of cereal?
3x = 12
÷3 ÷3
x = 4
300
Turn 8% into a decimal
.08
400
Another word for the letters used in expressions and equations.
Variable
400
Simplify:
10x + 7 - 4x + 15
6x + 22
400
Solve for x:
30 = 15 + 5x
x=3
400
Draw a tape diagram and solve:
Charlie went on a hike. The total trail was 12 miles long. If he stopped to take a break after 5 miles, how many miles (m) does he have left?
m + 5 = 12
-5 -5
m = 7
400
Write an equation that shows the relationship of 45% of b is 180.
b x .45 = 180
500
What type of math uses numbers and symbols to formulate expressions and equations?
Algebra
500
Simplify:
9 + 7x - 11 - 12x
-5x - 2
500
Solve for x:
24 = 14x + 10
x=1
500
Write the equation and solve
2 + x + 16 = 50
-2 -2
x + 16 = 48
-16 -16
x = 32
500
75% of r is 120. Find the value of r.
r x 0.75 = 120
÷0.75 ÷0.75
r = 160