Four-function, or ”basic,” calculators are designed with four main functions: addition, subtraction, multiplication, and division. Some basic calculators may include additional functions such as square roots and percentages.

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Accessible calculators (such as audio/“talking” or Braille) are allowed if authorized in advance of testing by ACT for the ACT® test and by the test coordinator for all other products.

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Calculators may only be used on the mathematics test, including ACT® WorkKeys® Applied Math. All problems may be solved without a calculator.

Graphing calculators offer capabilities such as plotting graphs, analyzing data, and performing complex mathematical functions like trigonometry and logarithms.

You may use any 4-function, graphing, or scientific calculator, as long as it is not on the prohibited list and it is modified (see below), if needed.

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Scientific calculators are equipped with advanced functions necessary for solving high-level math, science, and engineering problems. Some of these features include scientific notation, statistical and probability functions, built-in memory, and much more.