Class 8 Maths Chapter 9 Test Paper Set 2 Pdf Download CBSE
Test Paper Of Class 8 Maths Chapter 9 Algebraic Expressions and Identities set 2 pdf download
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Chapter 9 Test Paper (02)
Class 8 Maths Chapter 9 Algebraic Expressions and Identities Test Paper Set-2 Text Form:-
PGRMS Education
SAMPLE PAPER (2)
CLASS: 8 MAX. MARKS :30
SUBJECT: MATHEMATICS TIME: 1:30 HOUR
CH: 9 (Algebraic Expressions and Identities)
General Instructions:
I. All questions are compulsory.
II. This question paper contains 14 questions divided into four Sections A, B, C and D.
III. Section A has 5 questions of 1 mark each. Section B has 4 questions 2 marks each. Section C has 3 questions of 3 marks each. and Section D has 2 questions of 4 marks each.
IV. Use of Calculators is not permitted.
Section β A
In Questions 1 to 10, there are four options, out of which one is correct. Write the correct answer.
1. Which of the following is an identity?
(a) (p + q)2 = p2 + q2 (b) p2 β q2 = (p β q)2
(c) p2 β q2 = p2 + 2pq β q2 (d) (p + q)2 = p2 + 2pq + q2
2. Which of the following is correct?
(a) (a β b)2 = a2 + 2ab β b2
(b) (a β b)2 = a2 β 2ab + b2
(c) (a β b)2 = a2 β b2 (d) (a + b)2 = a2 + 2ab β b2
3. Which of the following is a binomial?
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(a) 7 Γ a + a (b) 6a2 + 7b + 2c
(c) 4a Γ 3b Γ 2c (d) 6 (a2 + b)
4. Volume of a rectangular box (cuboid) with length = 2ab, breadth = 3ac and height = 2ac is
(a) 12a3bc2 (b) 12a3bc
(c) 12a2bc (d) 2ab +3ac + 2ac
5. a2 β b2 is equal to
(a) (a β b)2 (b) (a β b) (a β b)
(c) (a + b) (a β b) (d) (a + b) (a + b)
Section β B
6. Identify the terms, their coefficients for each of the following expressions.
(i) x/2 + y/2β xy
(ii) 0.3a β 0.6ab + 0.5b
7. (a) Add (i) a β b + ab, b β c + bc, c β a + ac
(b) Subtract 3xy + 5yz β 7zx from 5xy β 2yz β 2zx + 10xyz
8. Obtain the product of
(i) xy, yz, zx
(ii) a, β a2, a3
9. Simplify a (a2+ a + 1) + 5 and find its value for (i) a = 0,
(ii) a = 1
(iii) a = β 1.
Section β C
10. Find the product.
(a) (y β 8) and (3y β 4)
(b) (a2+ 5) (b3+ 3) + 5
(c) (a2+ b) (a + b2)
11. Simplify.
(a) (x + y)(2x + y) + (x + 2y)(x β y)
(b) (1.5x β 4y)(1.5x + 4y + 3) β 4.5x + 12y
12. Use a suitable identity to get each of the following products.
(a) (1.1m β 0.4) (1.1m + 0.4)
(b) (4x + 5) (4x + 1)
(c) (2x + 5y) (2x + 3y)
Section β D
13. Simplify.
(a) (9p β 5q)2 + 180pq = (9p + 5q)2
(b) (m2 β n2m)2 + 2m3n2
(c) 9.7 Γ 9.8
(d) 9982
14. (a) If a + b = 25 and a2 + b2 = 225, then find ab.
(b) What should be added to 4c (β a + b + c) to obtain 3a (a + b + c) β 2b(a β b + c)?