Algebraic Expressions Quiz - CBSE Class 6 Mathematics

Free practice quiz: Algebraic Expressions (CBSE Class 6 Mathematics). 15 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is an algebraic expression?

   1. A number only
   2. A mathematical phrase that contains numbers, variables, and operations
   3. Only a variable
   4. An equation with an equal sign
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   Answer: B. A mathematical phrase that contains numbers, variables, and operations

   An algebraic expression is composed of numbers, variables, and operations (like addition and subtraction) without an equal sign.

2. In the expression 4y - 7z + 10, what are the terms?

   1. 4y, 7z, 10
   2. 4y, -7z, 10
   3. y, z, 10
   4. 4, -7, 10
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   Answer: B. 4y, -7z, 10

   The terms in an algebraic expression are separated by '+' or '-'. Therefore, the terms are 4y, -7z, and 10.

3. If the expression is x^2 + 3x - 4 and x = -1, what is its value?

   1. 2
   2. -4
   3. 0
   4. 1
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   Answer: C. 0

   Substituting -1 for x gives: (-1)^2 + 3(-1) - 4 = 1 - 3 - 4 = 0.

4. What is the result of simplifying the expression 8y - 2y?

   1. 6y
   2. 10y
   3. 4y
   4. 2y
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   Answer: A. 6y

   By combining like terms, you get: 8y - 2y = (8 - 2)y = 6y.

5. Factor the expression x^2 - 16.

   1. (x - 4)(x + 4)
   2. (x + 4)(x + 4)
   3. (x - 8)(x + 2)
   4. (x - 4)(x - 4)
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   Answer: A. (x - 4)(x + 4)

   x^2 - 16 is a difference of squares, which factors to (x - 4)(x + 4).

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