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Questions and Answers
What is the result of combining like terms in the expression x + 4x?
What is the result of combining like terms in the expression x + 4x?
Which of the following correctly describes the term y?
Which of the following correctly describes the term y?
Which statement accurately describes the terms 7m and -7y?
Which statement accurately describes the terms 7m and -7y?
Identify the coefficient in the term $ rac{1}{2}$yx.
Identify the coefficient in the term $ rac{1}{2}$yx.
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What is the purpose of inverse operations in mathematics?
What is the purpose of inverse operations in mathematics?
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Study Notes
UOI 3: Revision Worksheets
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Combining Like Terms: Terms with the same variables raised to the same powers are like terms. Combining like terms involves adding or subtracting the coefficients of those terms.
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Coefficients: The numerical factor in a term. For example, in the term 3x, 3 is the coefficient.
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Expressions: A combination of variables, numbers, and operations. Examples are 3x – 5y – 9 and x + 4x.
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Terms: The individual parts of an expression that are separated by addition or subtraction. Example 3x, -5y and -9 in the expression 3x - 5y - 9 are individual terms
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Inverse Operations: Operations that undo each other. In arithmetic these include addition and subtraction, multiplication and division, squarerooting and squaring and finding the inverse of a fraction.
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Simplifying Expressions: Combining like terms to obtain a simpler equivalent expression. For example, x + 4x simplifies to 5x.
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Fact Families: Two or more related facts or equations that involve the same numbers. Often related by addition and subtraction, or multiplication and division.
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Example Fact Family: Given a mathematical equation or problem, identifying two or more related facts using the same numbers involved in that problem.
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Description
This quiz covers the fundamental concepts of combining like terms, coefficients, and expressions. It also addresses simplifying expressions and understanding inverse operations. Perfect for revising essential algebra skills.
