Class 8 Maths Chapter 9 Test Paper Set 1 Pdf Download CBSE
Test Paper Of Class 8 Maths Chapter 9 Algebraic Expressions and Identities set 1 pdf download
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Chapter 9 Test Paper (01)
Class 8 Maths Chapter 9 Algebraic Expressions and Identities Test Paper Set-1 Text Form:-
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SAMPLE PAPER (1)
CLASS: 8 MAX. MARKS :30
SUBJECT: MATHEMATICS TIME: 1:30 HOUR
CH: 9 (Algebraic Expressions and Identities)
Section – A
In Questions 1 to 10, there are four options, out of which one is correct. Write the correct answer.
1. Which is the like term as 24a2bc?
(a) 13 × 8a × 2b × c × a
(b) 8 × 3 × a × b × c
(c) 3 × 8 × a × b × c × c
(d) 3 × 8 × a × b × b × c
2. In a polynomial, the exponents of the variables are always
(a) integers (b) positive integers
(c) non-negative integers (d) non-positive integers
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3. Like term as 4m3n2 is
(a) 4m2n2 (b) – 6m3n2
(c) 6pm3n2 (d) 4m3n
4. Area of a rectangle with length 4ab and breadth 6b2 is
(a) 24a2b2 (b) 24ab3
(c) 24ab2 (d) 24ab
5. Which of the following are like terms?
(a) 5xyz2, – 3xy2z (b) – 5xyz2, 7xyz2
(c) 5xyz2, 5x2yz (d) 5xyz2, x2y2z2
Section – B
6. Identify the terms, their coefficients for each of the following expressions.
(i) 5xyz2 – 3zy
(ii) 1 + x + x
7. (a) Add ab – bc, bc – ca, ca – ab
(b) Subtract 4a – 7ab + 3b + 12 from 12a – 9ab + 5b – 3
8. Obtain the volume of rectangular boxes with the following length, breadth and height respectively.
(i) 5a, 3a2, 7a4
(ii) (a2) × (2a22) × (4a26)
9. (a) Simplify 3x (4x – 5) + 3 and find its values for
(i) x = 3
(ii) x =12.
Section – C
10. Find the product.
(i) (2x + 5) and (4x – 3)
(i) (x2– 5) (x + 5) + 25
(iii) (t + s2) (t2 – s)
11. Simplify.
(a) (a + b) (c – d) + (a – b) (c + d) + 2 (ac + bd)
(b) (x + y)(x2– xy + y2)
12. Use a suitable identity to get each of the following products.
(a) (x + 3) (x + 3)
(b) (xyz – 4) (xyz – 2)
(c) (2y + 5) (2y + 5)
Section – D
13. Simplify.
(a) (ab + bc)2– 2ab2c
(b) (3x + 7)2 – 84x = (3x – 7)2
(c) 103 × 98
(d) 1022
14. (a) If m – n = 16 and m2 + n2 = 400, then find mn.
(b) The base of a parallelogram is (2x + 3 units) and the corresponding height is (2x – 3 units). Find the area of the parallelogram in terms of x. What will be the area of parallelogram of x = 30 units?
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