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# Calculators

You will be allowed to use a calculator while working on the CHSPE Mathematics section. All problems can be solved without the use of a calculator. If you wish to use a calculator, however, you may bring a solar-powered or battery-powered basic, non-statistical, nonscientific, non-programmable calculator. A basic calculator has 25 or fewer buttons and can perform no more than the four standard mathematical functions of addition (+), subtraction (-), multiplication (x), and division (÷) and, possibly, percentage (%), square root (√), and sign change (+/-). The calculator may have a simple memory (M+, M-, MC, MR).

Test administration staff will NOT provide calculators or batteries and will make sure that your calculator is acceptable before admitting you to the testing room. You may bring a backup calculator. You may only use one calculator at a time. If you bring a backup calculator or extra batteries, they must be put away. If you need to use any of your backup equipment, raise your hand. The calculator must not be in a case or sleeve of any kind, and you may not bring a calculator manual. You may not share your calculator with any other examinee. You may not use your calculator to share information during the test or to remove test questions or answers from the test room. If you leave the test room before you have completed testing (e.g., to use the restroom), your calculator(s) must remain on your desk in plain sight.

Unacceptable calculators for CHSPE include:

- Statistical calculators:
- Typically have buttons with "Σ" on them or buttons for statistical computation menus usually labeled "STAT" or "STO"
- Commonly have statistical buttons such as "Sx," "Sy," or "Sx
^{2}"

- Scientific calculators:
- Are easily identified because of their “sin,” “cos,” and “tan” buttons
- Generally have the following other buttons: "log" and "π" (pi)

- Programmable calculators:
- Have menus and blank buttons that can be used for varying functions and often also have an alphabetic (QWERTY) keypad
- Calculators that have the capability of entering letters along with numbers

- Calculators that are able to print
- Calculators that make noise that cannot be silenced
- Calculators that must be plugged into an outlet
- Calculators that are part of other devices (e.g., watches, PDAs, cellular phones)
- Calculators that have raised screens that may be seen by other examinees