Basic Math Operations and Vocabulary

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What is the Order of Operations?

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The Order of Operations is a set of rules that determines the sequence in which calculations are performed in a mathematical expression. It is often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

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What is a variable in mathematics?

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A variable is a symbol, often represented by a letter, that stands for a number that can change or vary. For example, in the expression 5x + 7, 'x' is the variable.

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What is the value at which water freezes?

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Water freezes at 32 degrees Fahrenheit (0 degrees Celsius).

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What does the term 'solution set' mean?

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A solution set is the set of all values that satisfy a given mathematical equation or inequality.

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What is an exponent?

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An exponent is a number that indicates how many times to multiply a base number by itself. For example, in 2^3 (2 raised to the power of 3), 2 is the base and 3 is the exponent, which means 2 x 2 x 2.

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What is the sum of 5 and 7?

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The sum of 5 and 7 is 12.

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What is subtraction?

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Subtraction is a basic mathematical operation that represents the operation of removing objects from a collection. For example, 10 - 4 = 6.

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What is multiplication?

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Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 4 x 3 means adding 4 three times (4 + 4 + 4 = 12).

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What is division?

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Division is a mathematical operation that represents the process of splitting a number into equal parts. For example, 12 ÷ 4 = 3, meaning 12 is split into 4 equal parts of 3.

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What is the difference between a prime number and a composite number?

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A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. A composite number is a natural number greater than 1 that has more than two positive divisors.