Survival Skills
for
Quantitative Courses

Positive and Negative Numbers
Quiz
 
   

SURVIVAL SKILLS

ALGEBRA & ARITHMETIC

Scientific Notation

Logarithms

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1. Without actually doing the calcuations, select the correct sign (+/-) of the answer.

  1. (15.7)(-38.92)(2.8) =
    +
    –
  2. (-81.7)(-17.3)(47.9) =
    +
    –

  3. =
    +
    –

  4. =
    +
    –

2). Perform the following calculations:

  1. 33.82 + (-75.1) + 88.382 =

    197.301
    -129.662
    47.102
    205.38

  2. -3828.28 - (-4838.9) + 83.21 =

    1,093.83
    8,750.39
    927.41
    -927.41

  3. (-81.7)(-17.3)(47.9) =
    -1,413.41
    1,413.41
    -67,702.339
    67,702.339

  4. =
    -132,293.47
    132,293.47
    -950.111
    950.111

  5. =
    -183.458
    183.458
    -7.338
    7.338

3) The temperature in Bryn Mawr reached 102oF in July. In January, the temperature fell to -12oF. What was the change in temperature bewteen July and January?

114oF
-114oF
90oF
-90oF
4) An electron has a charge of -1. What is the total charge of 3 electrons.
3
-3
1
-1