1.    -4 + 5 = ____                        2.    -10 - 4 = ____                        3.    -20 + 41 = ____

4.    -1.3 + 2.5 = ____                  5.    -6.7 + 4.5 = ____                    6.    -7.2 - 1.5 = ____

7.    -80 + 3 = ____                      8.    24 - 40 = ____                        9.    -12.3 + 44.4 = ____

10.    -1.5 + 3.06 = ____             11.    6.7 + -13.22 = ____                12.    -5.43 + 7.2 = ____

13.    -(-(-4))) = ____                 14.    -(-(-(-(-(-(-5)))))) = ____        15.    -(-(-8 + 12)) = ____

16.    -a + b + a = ____              17.    -6.2 million + 7.55 million + 6.2 million = _____________

18.    How many degrees are in one complete revolution or turn?  ________________

19.    What is the absolute value of -3.4? ________

20.    How many degrees does the minute hand on a clock move in one minute?  ____________

21.    Pizza is usually cut in 8 equal slices.  How many degrees is the opening at the
        end (the end were you take the first bite, unless you are weird like Mr. Bachrach
        who eats his pizza backwards)?  ____________
 

22.    ²/₅ + ¹/₄ = ______                   23.    ²/₃ + ^-1/₅ = ______               24.    ^a/₅ + ¹/₄ = ______
 
 
 

25.    ²/_n + ¹/₄ = ______                   26.    ^b/₅ + ^a/₄ = ______                   27.    ¹¹/₁₂ + ³/₄ = ______
 
 

28.    Consider the following events.  Give all pairs of events that are mutually exclusive.
        In other words, your answer would be like Y,N are mutually exclusive and so are H,U.

        A = sum of the dice is greater than 8.
        B = sum of the dice is greater than 5.
        C = dice are the same thing.
        D = one of the di is a 2.
        E = product of the dice is greater than 14.

    Which are mutually exclusive?    ______________________________________________
 
 
 
 
 
 
 
 
 

Classify the following as the commutative, associative, or op-op property.

29.    6 + 7 = 7 + 6                         ___________________________________

30.    -(-9) = 9                               ___________________________________

31.    (5 + 4) + 2 = 5 + (4 + 2)        ___________________________________

32.    7 + 0 = 0 + 7                        ___________________________________
 
 

Solve the following equations for the variable n.

33.    n + 5 = -20                                34.    5n = 9                                35.    7n + 4 = 5n + 20
 
 
 
 
 
 
 
 

36.    7n + 3 - 2n -10 = 6n - 4n + 10 + 1                                37.    -3n + 5 = 2n - 30
 
 
 
 
 
 
 
 
 
 
 
 

38.    -n - n - n - n + 20 = -n - n - n - 2                                39.    5n + 3 - 10 = 2n + n - 2 - 1
 
 
 
 
 
 
 
 

40.    n + y = 20                            41.    4n - n - n + 30 - 3n - 2 = 4n + 10 - 12 - 2n + 2
 
 
 
 
 
 
 
 
 
 
 
 

Name the type of polygon given the number of sides.

42.    8          _________________

43.    5          _________________

44.    3          _________________

45.    10        _________________

46.    9          _________________

47.    15        _________________
 

Consider line segment AE to the right.            ____________________________
                                                                       A      B                  C          D     E

48.    If AB = 3 cm and AC = 10 cm, then BC = ______
 

49.    If AC = 8 cm and CE = 6 cm, then AE = ______
 

50.    If DE = 4 cm, BC = 2 cm and BE = 10 cm, then CD  = ______
 

51.    If AC = 8 cm, BD = 10 cm, and AD= 15 cm, then BC = ______
 

52.   If AB = 13 cm and BC = x cm, then AC = ______