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Q:

# What are the four fundamental operations of mathematics?

A:

The fundamental operations in mathematics are addition, subtraction, multiplication and division. There are corresponding symbols for each. The plus sign (+) is for addition. The minus sign (-) is for subtraction. The symbols “x”, “*” and “•” signify multiplication. The obelus (÷) and forward slash (/) are used for division.

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Addition combines two or more numbers to get their sum or total, while subtraction finds the difference between two quantities. Multiplication is repeated addition; one of the numbers in a multiplication equation indicates how many times the other number needs to be added to itself. Division is the inverse of multiplication.

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## Related Questions

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A rational expression in mathematics is an expression that is the ratio of two polynomials. Most often, it is expressed as a fraction, such as (x^2 + 5)/(x - 2).

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In mathematics, the word "evaluate" is a verb that refers to finding or calculating the value of something. This can pertain to financial mathematics or to finding the exact value of an algebraic expression or numerical calculation.

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Some Common Core principles for mathematics are maintaining focus and coherence throughout a lesson, emphasizing connections between the content of lessons and practice, and raising expectations to improve mathematical fluency and conceptual understanding. The Common Core also strongly suggests that teachers provide students with examples of math use in real-world, practical applications.