### Solve when r = 7 - Stoughton Public Schools

```Topics for
th
Exam
Simplifying expressions
• Eight times a number plus 4
• Twelve less than a number
• The quotient of a number r and 9
• The product of 82 and g
• The total of 27 and j
Expressions from word problems
Joanna bought n pairs of socks at Hot Topic.
Bo went the next day and bought twice as
many as Joanna, plus three more pairs.
Write an expression for the number of
pairs of socks Bo bought.
Integer Rules
a) 16 – (-12)
b) 4 + (-7)
c) -2 + (-29)
d) 30 – 35
Integer Rules
a) - 12 · (-10)
b) 36  (-6)
Solving equations
• Inverse Operation
7g = 21
x = -8
6
Solve the equation:
• Inverse Operation
.4n = 24
-25 = v + (-10)
Inequality and Graphs
Solve the following inequality and graph:
-7g > 49
Absolute Value
| - 12 |
-| 3 |
| 6 | + | -2 |
Order of operations
60(18 – 12 + 2)
(-4)2 · 11 ÷ (-4)
a
b
Evaluate expressions given values
for variables
Solve if a = 6
2ac – 4b
b = 3 and c =10
Evaluate
Solve if b = 4
2b2 – 3
b3 – 2
Fractions
•
Comparing Numbers
Put in order from least to greatest:
4, |-5|, -|-8|, -7
Simplify:
b + 4 (6-b)
Plot points on a coordinate grid
• Coordinate points (x, y)
• Know all parts of the coordinate plane
• A (3, -4) and B (-2,1)
Patterns
Write the next integer:
-3, 6, 18, 33, ___
Formulas
• Be able to work with formulas like (d=rt)
when you are given 2 of the variables in
the formula and asked to find the 3rd.
• Use FFSS
• Use the formula d = rt to find the time
it takes to drive 110 mi at 5 mi/h? Round to
the nearest tenth.
Mean Median Mode
• Mean, median, mode
72, 68, 69, 71, 72, 73
```