Test Paper Of Class 7 Maths Chapter 12 Algebraic Expression
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Chapter 12 Test Paper (03)
class-7-maths-chapter-12-test-paper-03Class 7 Maths Chapter 12 algebraic Expression Test Paper Set-3 Text Form:-
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SAMPLE PAPER (03)
CLASS: 7 MAX. MARKS :30 SUBJECT: MATHEMATICS TIME: 1:30 HOUR CH: 12 (Algebraic Expressions)
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 of 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 – A
In Questions 1 to 5, there are four options, out of which one is correct. Write the correct answer.
1. The factors of the term –xy2 are
(a) x × y × y (b) – 1 × y × y
(c) – 1 × x × y (d) – 1 × x × y × y
2. The terms of expression 4x2 – 3xy are:
(a) 4x2 and –3xy (b) 4x2 and 3xy
(c) 4x2 and –xy (d) x2 and xy
3. Identify the binomial out of the following:
(a) 3xy2 + 5y – x2y (b) x2y – 5y – x2y
(c) xy + yz + zx (d) 3xy2 + 5y – xy2
4. The value of 3x2 – 5x + 3 when x = 1 is
(a) 1 (b) 0 (c) –1 (d) 11
5. The length of a side of square is given as 2x + 3. Which expression represents the perimeter of the square?
(a) 2x + 16 (b) 6x + 9 (c) 8x + 3 (d) 8x + 12
Section – B
6. Identify the numerical coefficients of terms (other than constants) in the following expressions:
(i) 5 – 3t2 (ii) 1 + t + t2 + t3 (iii) 3.14 r2 (iv) 2(l + b)
7. Classify into monomials, binomials and trinomials.
(i) x + y – xy (ii) 100 (iii) ab – a – b (iv) 5 – 3t
8. State whether a given pair of terms is of like or unlike terms.
(iii) – 29x, – 29y (iv) 14xy, 42yx
(v) 4m2p, 4mp2 (vi) 12xz, 12x2 z2
9. Get the algebraic expressions in the following cases using variables, constants and arithmetic operations
(i) The number z multiplied by itself.
(ii) One-fourth of the product of numbers p and q.
Section – C
10. Add:
(i) 3mn, – 5mn, 8mn, – 4mn
(ii) t – 8tz, 3tz – z, z – t
(iii) – 7mn + 5, 12mn + 2, 9mn – 8, – 2mn – 3
11. Subtract:
(i) – x2 + 10x – 5 from 5x – 10
(ii) 5a2 – 7ab + 5b2 from 3ab – 2a2 – 2b2
(iii) 4pq – 5q2 – 3p2 from 5p2 + 3q2 – pq
12. When a = 0, b = – 1, find the value of the given expressions:
(i) 2a + 2b (ii) 2a2 + b2 + 1 (iii) 2a2b + 2ab2 + ab
Section – D
13. If A = 3x2 – 4x + 1, B = 5x2 + 3x – 8 and C = 4x2 – 7x + 3, then find:
(i) (A + B) – C
(ii) B + C – A
14. Find the values of following polynomials at m = 1, n = –1 and p = 2:
(a) m + n + p
(b) m2 + n2 + p2
(c) m3 + n3 + p3
(d) mn + np + pm