CBSE Class 8 Maths MCQs on Multiplication of Algebraic Expressions
CBSE Class 8 Maths MCQs on Multiplication of Algebraic Expressions
Class: 8
Subject: Mathematics
Chapter 6: We Distribute, Yet Things Multiply
Topic: Multiplication of Algebraic Expressions
Subject: Mathematics
Chapter 6: We Distribute, Yet Things Multiply
Topic: Multiplication of Algebraic Expressions
Strictly Based on CBSE Curriculum | As per NCERT Textbook | Ideal for CBSE Class 8 Examination Preparation
Q1. Multiply: 3x × 4x
Correct Answer: B) 12x²
Explanation: Multiply coefficients (3×4=12) and add powers of x.
Explanation: Multiply coefficients (3×4=12) and add powers of x.
Q2. Multiply: 5a × 2b
Correct Answer: A) 10ab
Explanation: Multiply coefficients and combine variables.
Explanation: Multiply coefficients and combine variables.
Q3. Multiply: (x + 3)(2)
Correct Answer: B) 2x + 6
Explanation: Apply distributive property.
Explanation: Apply distributive property.
Q4. Multiply: (x + 2)(3)
Correct Answer: A) 3x + 6
Explanation: Multiply 3 with both terms.
Explanation: Multiply 3 with both terms.
Q5. Multiply: 7y × y
Correct Answer: B) 7y²
Explanation: y × y = y².
Explanation: y × y = y².
Q6. Multiply: 2a × 3a²
Correct Answer: C) 6a³
Explanation: Add powers (1+2=3).
Explanation: Add powers (1+2=3).
Q7. Multiply: (x + 5)(4)
Correct Answer: B) 4x + 20
Explanation: Apply distributive law.
Explanation: Apply distributive law.
Q8. Multiply: (a − 3)(2)
Correct Answer: B) 2a − 6
Explanation: Multiply 2 with both terms.
Explanation: Multiply 2 with both terms.
Q9. Multiply: 6x × 5
Correct Answer: A) 30x
Explanation: Multiply coefficients.
Explanation: Multiply coefficients.
Q10. Multiply: 4p × 3q
Correct Answer: B) 12pq
Explanation: Multiply coefficients and variables.
Explanation: Multiply coefficients and variables.
Q11. Multiply: (x + 1)(5)
Correct Answer: B) 5x + 5
Explanation: Distribute 5.
Explanation: Distribute 5.
Q12. Multiply: 9y × 2y
Correct Answer: A) 18y²
Explanation: Multiply coefficients and add powers.
Explanation: Multiply coefficients and add powers.
Q13. Multiply: (a + b)(3)
Correct Answer: A) 3a + 3b
Explanation: Apply distributive property.
Explanation: Apply distributive property.
Q14. Multiply: 2x² × 3x
Correct Answer: C) 6x³
Explanation: Add powers (2+1=3).
Explanation: Add powers (2+1=3).
Q15. Multiply: (m − 2)(4)
Correct Answer: B) 4m − 8
Explanation: Multiply 4 with both terms.
Explanation: Multiply 4 with both terms.
Q16. Multiply: 5a² × 2a
Correct Answer: C) 10a³
Explanation: Add powers (2+1=3).
Explanation: Add powers (2+1=3).
Q17. Multiply: (x − 4)(2)
Correct Answer: B) 2x − 8
Explanation: Distribute 2.
Explanation: Distribute 2.
Q18. Multiply: 3ab × 2a
Correct Answer: A) 6a²b
Explanation: Multiply coefficients and add powers of a.
Explanation: Multiply coefficients and add powers of a.
Q19. Multiply: (2x + 3)(1)
Correct Answer: A) 2x + 3
Explanation: Any expression multiplied by 1 remains same.
Explanation: Any expression multiplied by 1 remains same.
Q20. When multiplying algebraic terms, powers of same base are:
Correct Answer: B) Added
Explanation: a^m × a^n = a^(m+n).
Explanation: a^m × a^n = a^(m+n).
