Here we are providing Class 7 Math Important Objective Chapter – 12 Algebraic Expressions because its very important for Class 7 students as we all know that every board exam question has MCQs so that students should practice these questions so that students can get good marks in board. Class 7 Math Important Objective Chapter – 12 Algebraic Expressions is an extremely important and its also a year in which students learn the fundamentals of concepts that help them lay a solid foundation for their higher education. Here we are providing in Class 7 Math Important Objective Chapter – 12 Algebraic Expressions 60+ questions so that students practice more and more. If you want class wise Notes Then Click Here
Class 7 Math Important Objective Chapter – 12 Algebraic Expressions
1. The sum of mn + 5 – 2 and mn+3 is
(a) 2mn + 6
(b) mn + 6
(c) 2mn – 6
(d) mn – 6
Ans-(a)
2. Subtract y2 from – 5y2
(a) -6y2
(b) 6y2
(c) y2
(d) -5y2
Ans-(a)
3. In a two digit number, the units digit is x and tens digit is (x+3). What is the sum of the digits in the number?
(a) 11x+3
(b) 2x+3
(c) 3+x
(d) 11x+30
Ans-(b)
4. What should be added to x2 + y2 to get x2 + y2 + 2 xy?
(a) xy
(b) 2xy
(c) 4xy
(d) -2xy
Ans-(b)
5. How many terms are there in the expression 2x2y?
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(a)
6. The constant term in the expression 1 + x2+ x is
(a) 1
(b) x
(c) x2
(d) None of these
Ans-(a)
7. How many terms are there in the expression 2y + 5?
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(b)
8. The length and breadth of a rectangular plot are I and b. Two rectangular paths each of width W run inside the plot one parallel to the length and the other parallel to the breadth. What is the total area of the paths?
(a) (l + w)(b + w) − lb
(b) lb − (l − w)(b − w)
(c) (l + b − w)w
(d) lb − (l − 2w)(b − 2w)
Ans-(c)
9. Find the value of the expression x + 2 for x = -2
(a) 0
(b) 2
(c) -2
(d) 4
Ans-(a)
10. How many terms are there in the expression 1.2ab – 2.4b + 3.6a?
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(c)
11. Get the algebraic expressions for subtraction of z from y.
(a) y × z
(b) y – z
(c) y + z
(d) y/z
Ans-(b)
12. How many terms are there in the expression – 2p3 – 3p2 + 4p + 7?
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(d)
13. Find the value of the expression 4x – 3 for x = 1
(a) 4
(b) -3
(c) 3
(d) 1
Ans-(d)
14. For what value of ‘m’ is 9 − 5m = (−1)?
(a) −1
(b) −2
(c) 2
(d) 1
Ans-(c)
15. What is the coefficient of x in the expression 4x + 3y?
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(d)
16. Find the value of the expression 100 – 10 x 3 for x = 0
(a) 10
(b) -10
(c) 100
(d) -100
Ans-(c)
17. Write an expression : Raju s father s age is 5 years more than 3 times Raju s age. If Raju s age is x years, then father’s age is
(a) 3x – 5
(b) 3x + 7
(c) 5 – 3x
(d) 3x + 5
Ans-(d)
18. What is the coefficient of x in the expression 2 – x + y?
(a) 2
(b) 1
(c) -1
(d) None of these
Ans-(c)
19. Find the value of the expression 5n – 3 for n = -1
(a) 5
(b) -3
(c) -8
(d) 8
Ans-(c)
20. When a certain number, ‘m’ is divided by 5 and added to 8, the result is equal to thrice the number subtracted from 4. What is the value of ‘m?
(a) 2
(b) 4/3
(c) −1
(d) 30/7
Ans-(d)
21. What is the coefficient of x in the expression y2x + y?
(a) y2
(b) y
(c) 1
(d) 0
Ans-(a)
22. Find the value of the expression x2 + 2x + 1 for x = – 1
(a) 0
(b) 1
(c) -1
(d) 2
Ans-(a)
23. What are the coefficients of y in the expression yz2+ 5?
(a) z
(b) z2
(c) 1
(d) 5
Ans-(b)
24. Find the value of the expression a + b for a = 1, b = 2
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(c)
25. What is the coefficient of x in the expression 2z – 3xz?
(a) 3
(b) z
(c) 3z
(d) -3z
Ans-(d)
26. Find the value of the expression a2 – 2ab + b2 for a = 1, b = 1
(a) 1
(b) 0
(c) -1
(d) 2
Ans-(b)
27. A and B are polynomials and each is the additive inverse of the other. What does it mean?
(a) A = B
(b) A+B is a zero polynomial.
(c) A−B is a zero polynomial.
(d) A−B = B−A
Ans-(b)
28. What is the coefficient of x in the expression 2x + xy2?
(a) 2 + y2
(b) 2
(c) y2
(d) None of these
Ans-(a)
29. Find the value of the expression 3x + 5 (x – 2) for x = 2
(a) 2
(b) 4
(c) 5
(d) 6
Ans-(d)
30. A _________ can take various values.
(a) variable
(b) expression
(c) term
(d) None of these
Ans-(a)
31. Find the value of the expression – x + 2 for x = -2
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(d)
32. What is the coefficient of y2 in the expression 4 – xy2?
(a) 4
(b) x
(c) -x
(d) None of these
Ans-(c)
33. What is the coefficient of y2 in the expression 3y2 + 4x?
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(c)
34. Find the value of the expression 3p + 7 for p = -2
(a) 1
(b) -1
(c) 2
(d) -2
Ans-(a)
35. What are the coefficients of y in the expression 4x – 3y?
(a) -4
(b) -3
(c) 3
(d) 4
Ans-(b)
36. The coefficient of x² in – 5x²y is
(a) -5
(b) y
(c) 5y
(d) -5y
Ans-(d)
37. What is the coefficient of y2 in the expression 2x2y – 10xy2 + 5y2?
(a) 5 – 10x
(b) 5
(c) -10 x
(d) None of these
Ans-(a)
38. What is the difference between 3a + 2b and −2a − 5b?
(a) 5a+7b
(b) −5a−7b
(c) 5a−7b
(d) a−3b
Ans-(a)
39. The expression 4a²b – 5ab² + 1 is a
(a) monomial
(b) binomial
(c) trinomial
(d) None of these
Ans-(c)
40. What is the coefficient of x in the expression ax3 + bx2 + d?
(a) a
(b) b
(c) d
(d) 0
Ans-(d)
41. Add 3 mn, -5 mn, 8 mn, -4mn.
(a) 2 mn
(b) 20 mn
(c) -2 mn
(d) None of these
Ans-(a)
42. What is the coefficient of x in the expression 5x³ + 7x² – 5?
(a) 5
(b) 7
(c) -5
(d) 0
Ans-(d)
43. The sum of mn + 5 – 2 and mn+3 is
(a) 2mn + 6
(b) mn + 6
(c) 2mn – 6
(d) mn – 6
Ans-(a)
44. What is the coefficient of x2 in the expression ax + b?
(a) a
(b) b
(c) a + b
(d) 0
Ans-(d)
45. Which of the following pairs of terms is of unlike terms
(a) -p²q², 12p²q²
(b) – 4x²; – Axy²
(c) 41, 100
(d) qp², 13p²q
Ans-(b)
46. Simplify these expressions and find their values, if x = 3, a = – 1, b = – 2.
3x – 5a – x2 + 9b
(a) -13
(b) 15
(c) 13
(d) None of these
Ans-(a)
47. Which of the following pairs of terms is a pair of like terms?
(a) 1, 10
(b) y, -xy
(c) z2, Z
(d) Z2, 8
Ans-(a)
48. Find the value of x + 4 for x = 2.
(a) 6
(b) 8
(c) 4
(d) None of these
Ans-(a)
49. How many terms are there in the expression 5x + 3y + 8?
(a) 1
(b) 2
(c) 3
(d) 4
Ans-(c)
50. Which of the following pairs of terms is a pair of like terms?
(a) 7p, 8q
(b) 10pq, -7qp
(c) 12q2 p2, -5p2
(d) 2405p, 78qp
Ans-(b)
51. Subtracting 5x + 3y from 5x – y + 8 given
(a) 4x – 8
(b) 4y – 8
(c) 8 – 4y
(d) 4x + 8
Ans-(c)
52. The simplified form of the Boolean expression (X + Y + XY)(X + Z) is
(a) X + Y + Z
(b) XY + YZ
(c) X + YZ
(d) XZ + Y
Ans-(c)
53. The value of 3x² + 2x – 7 at x = -2 is
(a) 1
(b) -1
(c) 9
(d) 23
Ans-(a)
54. Which of the following pairs of terms is a pair of unlike terms?
(a) -p2q2, 12q2p2
(b) 41, 100
(c) qp2, 13p2q
(d) -4yx2, -4xy2
Ans-(d)
55. The coefficient of x² in -2x²y is:
(a) -2
(b) y
(c) 2y
(d) -2y
Ans-(d)
56. An expression which contains two unlike terms is called _______.
(a) binomial
(b) monomial
(c) trinomial
(d) None of these
Ans-(a)
57. Add 2 mn, -4 mn, 8 mn, -6 mn
(a) 0
(b) 2 mn
(c) 8 mn
(d) 10 mn
Ans-(a)
58. Simplify combining like terms: 3a – 2b – ab – (a – b + ab) + 3ab + b – a
(a) a – ab
(b) a + ab
(c) a + b
(d) None of these
Ans-(b)
59. Get the algebraic expression of subtraction of z from y.
(a) z – y
(b) y – z
(c) – z + y
(d) None of these
Ans-(b)
60. What is the co-efficient ofy in the given algebraic expression 8 + yz.
(a) 8
(b) 1
(c) z
(d) None of these
Ans-(c)
61. Add a + b – 1, b – a + 1, 1 – 26
(a) 1
(b) -1
(c) 2
(d) -2
Ans-(a)
