Unit 3 Math Test

 November 5, 2012
     Math 7
1) Using order of operations, which
step would be performed first in the
following expression?

            4(4 - 8²) – 12 ÷ 3

    A) 4 - 8         C) 12 ÷ 3

    B) 8²            D) 4 - 8²
2) In which step of the Order of
Operations would you complete
any absolute values?

F) Parentheses
G) Multiplication
H) Subtraction
J) Exponents
3) In which step of the Order of
Operations would you complete
any square roots?

A) Parentheses
B) Multiplication
C) Subtraction
D) Exponents
4) Evaluate:

               20 – (-12) ÷ 4

    F) 8           H) 23

    G) 17          J) 2
5) Evaluate:

       -24 ÷ 2 – 3 ● 6

   A) 6            C) 30

   B) -6           D) -30
6) Evaluate:
       (-4)² + (-3) ● 2 – 8
7) Evaluate:
           12  7  2
F) 38
G) 2
H) 26
J) -10
8) Evaluate:
     64  24  (3)   12
9) Which one of the following is
    NOT true?

A) -12 + 7 ● 3 = -15
B) 15 - 8² = -1
C) -3●(7 – 4) = -9
D) -8 + 7 – 9 + 6 = -4
10)
Evaluate if a= -3, b=6, and c= -9

            ca – b
11) Evaluate if m=(-4) and x=(-9):
          mx
                9
           3
12) Edwin was evaluating the expression
    below when a=4 and b=(-8) .

His work is shown in the box below.
What should Edwin do to correct the error that
he made? Explain using complete sentences.
13) In the expression 3x + 7, which
    is the coefficient and which is
    the constant?

Coefficient ________

Constant ________
14) Which phrase below is equivalent
    to 2h – 3 = -12?
F) The quotient of two and a number less three
   is negative twelve.
G) Three less than negative twelve is two times a
   number, h.
H) Three subtracted from twice a number is
   negative twelve.
J) The product of two and three times a number
    is twelve.
15) Which verbal expression
    below matches the algebraic
    expression: m ÷ 4 + 7

A) 7 more than the product of m and 4
B) The quotient of four and m plus 7
C) The product of m and 4 plus 7
D) The quotient of m and 4 plus 7
16) Choose all expressions below that
    are equivalent to:
    Four more than the quotient of a
    number and 7.
         7
    F)       4      H)   7 n 4
         n
         n
    G)       4      J) n ÷ 7 + 4
         7
17) Ricardo drives from Los
    Angeles to Phoenix in 9 hours.
    If he drove 65 mph the entire
    time, how far did he drive?
18) Which of the following does
    not show the commutative
    property?

A) 3 + 7 = 7 + 3
B) -8 ● 3 = 3 ● -8
C) (4 + 6) + 9 = 4 + (6 + 9)
D) (2 ● 3) ● 6 = (3 ● 2) ● 6
20) Use the distributive property
    to simplify the following
    expression:

       (4m + 6)2 - 12
21) Amelia was trying to find the mistake
    in her problem. What did she do
    incorrectly when using the distributive
    property? Explain in complete sentences
    and correct her error to find the right
    answer.

         2(-3 + 7 – 4) = 2(-3) + 2(7) – 4
                        -6 + 14 – 4
                            8–4
                              4
22) Circle the like terms in the
    expression below:

        4x – 3y + 6 – 12y
23) Simplify the expression below:

       2a + 4 + 2a + 9
24) Simplify the expression below:

       -2(2w – 5) – 4w
25) Which represents the
    simplified form of the
    expression below?

        -3(6 – 2g) – 3g

    A) -18 + 3g     C) 18 + 3g
    B) -18 – 9g     D) -18 – 3g
**BONUS!**

Write an expression in simplest form
that represents the perimeter of the
polygon. SHOW YOUR WORK!
                     4x – 1

                              8x + 1
            8x




                              11x
                 8x – 4

Unit 3 Math Test

  • 1.
    Unit 3 MathTest November 5, 2012 Math 7
  • 2.
    1) Using orderof operations, which step would be performed first in the following expression? 4(4 - 8²) – 12 ÷ 3 A) 4 - 8 C) 12 ÷ 3 B) 8² D) 4 - 8²
  • 3.
    2) In whichstep of the Order of Operations would you complete any absolute values? F) Parentheses G) Multiplication H) Subtraction J) Exponents
  • 4.
    3) In whichstep of the Order of Operations would you complete any square roots? A) Parentheses B) Multiplication C) Subtraction D) Exponents
  • 5.
    4) Evaluate: 20 – (-12) ÷ 4 F) 8 H) 23 G) 17 J) 2
  • 6.
    5) Evaluate: -24 ÷ 2 – 3 ● 6 A) 6 C) 30 B) -6 D) -30
  • 7.
    6) Evaluate: (-4)² + (-3) ● 2 – 8
  • 8.
    7) Evaluate:  12  7  2 F) 38 G) 2 H) 26 J) -10
  • 9.
    8) Evaluate: 64  24  (3)   12
  • 10.
    9) Which oneof the following is NOT true? A) -12 + 7 ● 3 = -15 B) 15 - 8² = -1 C) -3●(7 – 4) = -9 D) -8 + 7 – 9 + 6 = -4
  • 11.
    10) Evaluate if a=-3, b=6, and c= -9 ca – b
  • 12.
    11) Evaluate ifm=(-4) and x=(-9): mx 9 3
  • 13.
    12) Edwin wasevaluating the expression below when a=4 and b=(-8) . His work is shown in the box below. What should Edwin do to correct the error that he made? Explain using complete sentences.
  • 14.
    13) In theexpression 3x + 7, which is the coefficient and which is the constant? Coefficient ________ Constant ________
  • 15.
    14) Which phrasebelow is equivalent to 2h – 3 = -12? F) The quotient of two and a number less three is negative twelve. G) Three less than negative twelve is two times a number, h. H) Three subtracted from twice a number is negative twelve. J) The product of two and three times a number is twelve.
  • 16.
    15) Which verbalexpression below matches the algebraic expression: m ÷ 4 + 7 A) 7 more than the product of m and 4 B) The quotient of four and m plus 7 C) The product of m and 4 plus 7 D) The quotient of m and 4 plus 7
  • 17.
    16) Choose allexpressions below that are equivalent to: Four more than the quotient of a number and 7. 7 F) 4 H) 7 n 4 n n G) 4 J) n ÷ 7 + 4 7
  • 18.
    17) Ricardo drivesfrom Los Angeles to Phoenix in 9 hours. If he drove 65 mph the entire time, how far did he drive?
  • 19.
    18) Which ofthe following does not show the commutative property? A) 3 + 7 = 7 + 3 B) -8 ● 3 = 3 ● -8 C) (4 + 6) + 9 = 4 + (6 + 9) D) (2 ● 3) ● 6 = (3 ● 2) ● 6
  • 21.
    20) Use thedistributive property to simplify the following expression: (4m + 6)2 - 12
  • 22.
    21) Amelia wastrying to find the mistake in her problem. What did she do incorrectly when using the distributive property? Explain in complete sentences and correct her error to find the right answer. 2(-3 + 7 – 4) = 2(-3) + 2(7) – 4 -6 + 14 – 4 8–4 4
  • 23.
    22) Circle thelike terms in the expression below: 4x – 3y + 6 – 12y
  • 24.
    23) Simplify theexpression below: 2a + 4 + 2a + 9
  • 25.
    24) Simplify theexpression below: -2(2w – 5) – 4w
  • 26.
    25) Which representsthe simplified form of the expression below? -3(6 – 2g) – 3g A) -18 + 3g C) 18 + 3g B) -18 – 9g D) -18 – 3g
  • 27.
    **BONUS!** Write an expressionin simplest form that represents the perimeter of the polygon. SHOW YOUR WORK! 4x – 1 8x + 1 8x 11x 8x – 4