Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Use this balance-scales model to solve for x. 
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2.
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Solve this equation. 5t = 20
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3.
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Write an equation for this situation.
Patricia has p posters. She sold
8 and has 18 left.
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4.
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Solve this equation. –26 + 2x = –2
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5.
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Write an equation for this sentence.
A number divided by 4 is 11.
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6.
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Write an equation for this sentence.
A number divided by -2 is 11.
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7.
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Expand. 
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8.
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Which statement is correct?
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9.
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Solve this equation: 
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10.
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Solve this equation:  a. |  | b. | –2 | c. |  | d. | –4 |
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Short Answer
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11.
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In the left pan of a set of balance scales, there are 3 identical unknown masses
and a mass of 5 g.
The scales are balanced by placing a mass of 20 g in the right pan.
Find
each unknown mass.
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12.
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Solve this equation. 
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13.
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Solve this equation. 
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14.
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Sean paid $81 to rent a boat to go fishing. The rental rate was $25 plus $8 per
hour.
For how many hours did Sean rent the boat?
Write an equation, then solve the
problem.
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15.
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Which value, 4, 6, or 8, is the correct solution to the equation  ?
Explain.
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16.
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Write an equation for this sentence, then solve the equation.
When a number
divided by 5 is subtracted from 13, the result is 8.
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17.
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Match each expression in Column 1 with an equivalent expression in Column
2. Column 1 Column 2
a)  i) 
b) 
ii) 
c)  iii) 
d) 
iv) 
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18.
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Ms. Jones pays for 4 teens to go to a local theatre and supplies each with a
snack. The admission cost for a teen is $11 and a snack costs $9. a) Write 2 different expressions to find the
total cost of the outing.
b) How much does Ms. Jones have to
pay?
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19.
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Solve this equation: 
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20.
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Solve this equation: 
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Problem
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21.
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You have 3 known masses: 1 kg, 3 kg, and 5 kg. Show how you can use these
masses and balance scales to find an unknown mass of 1 kg to 9 kg. Use this table to
help. Left Pan | Right
Pan | Unknown
Mass | Known Mass | Known
Mass | 1
kg | | | 2
kg | | | 3
kg | | | 4
kg | | | 5
kg | | | 6
kg | | | 7
kg | | | 8
kg | | | 9
kg | | | | | |
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22.
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Solve this equation.  Show your work.
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23.
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 +  = 10 Replace  with a number
so that x will have the value 12. Verify your solution.
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24.
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Simplify this expression.  Show your work.
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25.
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The length of a rectangle is 5 cm more than its
width.
a) Write a formula for the perimeter, P, of the
rectangle that involves the distributive property.
b) Find the
length and width of the rectangle if the perimeter is 58 cm. Show your work.
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