Short form or long form?

EEI's POSS brochure describes both and says the two alternate batteries differ slightly in content and administration time. Which one you sit is decided by the employer and the role, so we let you practice either.

Why doesn't CAST-R have this section?

EEI's own CAST-R material says the revised battery replaced Mathematical Usage with the Work Preferences Inventory. If your employer still calls the test CAST rather than CAST-R, expect the math section — most utilities still use the older name.

Mathematical Usage free demo

In CAST, POSS and MASS · about 3 minutes · Choose an answer

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Preparing your free demo…

About the Mathematical Usage section

Mathematical Usage is the fastest section in the batteries that use it. EEI's CAST and MASS brochures describe 18 questions in 7 minutes. POSS is published in two alternate batteries and the only documented difference between them is this section: the same short form, or a long form of 46 questions in 17 minutes that adds formula conversion, algebra and word problems.

None of the math is advanced. It is conversions, rates, percentages, areas and volumes, and substituting numbers into a formula that is given to you. What makes the section hard is the clock: at roughly 23 seconds a question there is no room to work anything out twice.

Our generator produces fresh questions in each of those families at the level the section describes, and the timed run uses the same pacing so you find out what 23 seconds a question actually feels like. Practice mode drops the clock and explains each step.

Tips from practice

Learn the conversions cold — inches and feet, feet and yards, ounces and pounds, minutes and hours. Looking one up costs a whole question.
Estimate first. If your answer is nowhere near your estimate you have slipped a decimal.
Skip anything that needs more than a few seconds of setup and come back if there is time.
Practice without a calculator. Several utilities do not allow one, and the section is designed to be doable without.

Common questions

Short form or long form?: EEI's POSS brochure describes both and says the two alternate batteries differ slightly in content and administration time. Which one you sit is decided by the employer and the role, so we let you practice either.
Why doesn't CAST-R have this section?: EEI's own CAST-R material says the revised battery replaced Mathematical Usage with the Work Preferences Inventory. If your employer still calls the test CAST rather than CAST-R, expect the math section — most utilities still use the older name.

This demo is independent practice, written from publicly published descriptions of the section. It is not affiliated with or endorsed by the Edison Electric Institute or any utility, and it is not identical to any real test.