CALCULATOR APPLICATIONS

Last Updated:  8/10/03

ENTRIES.    
As many as THREE students from EACH GRADE LEVEL (grades 6, 7 and 8) may be entered in the Calculator Applications District Contest from each school.  Designated adults representing each school will select contestants to represent the campus at the District Meet based on their abilities and interest in math calculations, as well as other  factors, which  are  decided  upon by each school.  Each grade level is judged separately in contest.

• NATURE OF THE CONTEST.    The contest presents 80 problems in straight-forward numerical calculation, in calculations based upon geometrically presented problems, and in word problems.  Both accuracy and speed are factors in the competition.  Any silent, hand-held calculator that the student is comfortable using may be used in the contest and should be brought to competition. The geometric problems involve knowledge of formulas for simple figures such as circles, squares, rectangles, and right triangles.  The word problems require application of appropriate mathematical skills and practical knowlege to real-life situations.
Below we show representative problems of medium difficulty from each category:

45.    (9.17 x 107) (3.37 x 102)
                    (6.96 x 106)  (7.12 x 10-1)                                       45 =  ____________________  
    
46.       1      +         1                  2.21      7.83 + 3.72                   46 =  ____________________    
    
47.    Three times a certain number, plus 129 squared
    equals 19,208.  What is the number?                                        47 = _____________________    

48.    Lazarus can walk 4.2 miles per hour. If he goes to the rich
     man’s house, which is 2.8 miles away from where he lives,
    to beg for some food twice a day, how much time will he
    spend walking to and from the house in one week?                 48 = _____________________ hours

• WHAT HAPPENS IN THE CONTEST.   
The contest director will announce the time and place that contestants and one adult should report for verification of the scoring of tests. Contestants will be assisted by the director and assistant(s) in clearing all calculator memories and turning calculators to the “off” position.  Tests will be distributed to contestants face up, and contestants will be instructed to write their grade levels and their contestant ID numbers in the spaces provided on the front cover.  Contestant must not open the test until the start signal is given. The contest director will tell contestants their ID numbers, usually during roll call. (Alternates taking the place of absent registered contestants should be sure to let the contest director know as they enter the room to save time in roll call.)  No alarm watches or other devices that emit sound are allowed in the contest room.   Contestants will use ONE calculator of their choice to compute answers on the test during contest time.

TIME ALOTTED.  Contestants will have 30 minutes beginning at the start signal to use their calculators to answer the test questions.  No time warning will be given.  Contestants will remain quietly in their seats until the time has expired.

MARKING ANSWERS.  Contestants may write on the test paper, but only the answer should be written in the answer space.  ERASURES AND MARKOUTS IN THE ANSWER SPACE ARE NOT PERMITTED.  Any marking in the answer space will constitute an attempt. Answers may be written in decimal or in powers of 10 notation of the form, 1.23 x 10-6.  Except in the integer and dollar sign problems, answers should be written with three significant digits only, with plus or minus one digit error in the third significant digit permitted.  Integer problems require answers written as an integer, and no error is permitted.  Dollar sign problems should be answered to the exact cent, but plus or minus one cent error is permitted.  Answers should be given in the units specified on the answer blank, if a unit is required, and with the correct sign.

• SCORING.     Add 5 points for each correct answer.   Subtract 2 points for each wrong answer, or for each answer that was marked through or erased.  No points are added or deducted for skipped or unanswered test items.

• VERIFICATION PERIOD.     No pens or pencils should be in contestants’ hands while tests and answer sheets with keys are reviewed.  Contestants and ONE coach OR parent OR adult have 15 minutes to check the computation of scores and ask questions about items counted incorrect.  If the contest is held before March 31, tests must be turned back in to the contest director.  Contestants will be disqualified from the contest should the paper be taken from the room prior to this date.  After verification has been completed, awards will be issued. (At State, medals will be awarded through 6th place.)

• MATERIALS.
PSIA Calculator Applications District and State tests and answer keys are included in both the Elementary and Middle School Academic Study Materials Booklets, which may be ordered from the PSIA state office.   An order form for these booklets, plus a booklet that consists of four separate Calculator tests, is included in the appendix of the PSIA Academic Handbook and also may be accessed through this link:  PSIA Study Materials Order Form

A Commonly Asked Question
Q.    If the answer to a question is 3.68 x 101, would the answer be correct if it were given as 3.68 x 10 with the (1) omitted?
A.    3.68 x 101, 3.68 x 10 and 36.8 are correct answers.  3.68E1, 3.68 • 101 and 36.8 x 100 are incorrect.

Go to Home Page | Go to Links Page

Staff Support
Patricia Walters, Ed.D., Executive Director
Phone: (817) 416-9504
Fax: (817) 416-9576
E-mail: psia@flash.net