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Lesson: Challenging Arithmetic - 12

Exponents or Powers

[Page 12 of 30]

An exponent is just shorthand way to express multiplication. An exponent tells you how many times to multiply a number by itself. Exponents are widely used in quantitative section of all tests.

Video Exponents and Powers

Exponents can also be negative. A number raised to a negative exponent is the reciprocal of that number raised to a positive exponent (i.e., one over that number). For instance:

; and so on.

These numbers can come in interesting combinations, too:

The small number in the corner is the exponent. The regular-sized number is the base.

Exponents are also called powers.

Video - Negative Exponents

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Each exam has different types of math sections. The sections may be called Mathematics or Arithmetic Problem Solving. In the math section of the exam, you will be tested on basic math skills such as addition, subtraction, multiplication, and division. Some sections may include fractions, decimals, graphs and percentages. All questions will be a multiple choice format. The amount of math questions on each test will vary.

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