The ACT allows the use of calculators for the Mathematics Test, and the American College Testing Program (the people who sponsor the exam) recommends that each test taker bring a calculator to the test. Even though no question will require the use of a calculator -- that is, each question can be answered without one -- in some instances, using a calculator will save you valuable time.

Calculator Do's

• Make sure that you're familiar with the way your calculator works.
• Make sure that your calculator has new, fresh batteries.
• Keep in mind that if there appears to be too much computation or the problem seems impossible without the calculator, you're probably doing something wrong.
• Before doing an operation, check the number that you keyed in on the display to make sure that you didn't make a mistake.
• Be sure to carefully clear the calculator before beginning new calculations.

Calculator Don'ts

• Don't rush out and buy a sophisticated calculator just for the test.
• Don't bring a calculator that you're unfamiliar with.
• Don't bring a pocket organizer, handheld computer, laptop, or calculator with a typewriter-type keypad or paper tape.
• Don't bring a calculator that makes noise.
• Don't try to use a calculator on every problem.