# Class 7 Maths Chapter 12 Test Paper Set-1 Pdf Download CBSE

Test Paper Of Class 7 Maths Chapter 12 Algebraic Expression

Chapter 12 Test Paper (01)

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## Class 7 Maths Chapter 12 algebraic Expression Test Paper Set-1 Text Form:-

PGRMS EDUCATION

SAMPLE PAPER (01)

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 β A

In Questions 1 to 5, there are four options, out of which one is correct. Write the correct answer.

1: The like terms in 3x (3 β 2y) and 2 (xy + x2) are

(a) 9x and 2x2                             (b) β 6xy and 2xy

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• (c) 9x and 2xy                             (d) β 6xy and 2x2

2. Number of terms in the expression 3x2y β 2y2z β z2x + 5 is

(a) 2                       (b) 3                       (c) 4                        (d) 5

3. Coefficient of x in β 9xy2z is

(a) 9yz                   (b) β 9yz                (c) 9y2z                   (d) β 9y2z

4. β b β 0 is equal to

(a) β1 Γ b               (b) 1 β b β 0          (c) 0 β (β1) Γ b        (d) β b β 0 β 1

5. The number of scarfs of length half metre that can be made from y metres of cloth is :

(a) 2y                        (b) y/2                  (c) y + 2                   (d) y + Β½

Section β B

6. Find:

(a) the coefficients of x in the following expressions? 4x β 3y, 8 β x + y, y 2 x β y, 2z β 5xz

(b) the coefficients of y in the following expressions? 4x β 3y, 8 + yz, yz2 + 5, my + m

7. Classify into monomials, binomials and trinomials.

(i) 4y β 7z             (ii) y2                  (iii) x + y β xy                (iv) 100

8. State whether a given pair of terms is of like or unlike terms.

(i) 1, 100               (ii) β7x, 52x    (iii) β 29x, β 29y            (iv) 14xy, 42yx

9. Get the algebraic expressions in the following cases using variables, constants and arithmetic operations

(i) Subtraction of z from y.

(ii) One-half of the sum of numbers x and y.

Section β C

10. Simplify combining like terms:

(i) 21b β 32 + 7b β 20b

(ii) β z2 + 13z 2 β 5z + 7z 3 β 15z

(iii) p β (p β q) β q β (q β p)

11. Subtract: (i) β5y2 from y2

(ii) 6xy from β12xy

(iii) (a β b) from (a + b)

12. If m = 2, find the value of:

(i) m β 2                         (ii) 3m β 5                     (iii) 9 β 5m

Section β D

13. (a) From the sum of 2y2 + 3yz, β y2 β yz β z2 and yz + 2z2 , subtract the sum of 3y2 β z2 and βy2 + yz + z2 .

(b) Subtract the sum of β 3x3y2 + 2x2y3 and β 3x2y3 β 5y4 from x4 + x3 y2 + x2y3 + y4.

14. Find the values of the following polynomials at a = β 2 and b = 3:

(a) a2 + 2ab + b2                                     (b) a2 β 2ab + b2

(c) a3 + 3a2b + 3ab2 + b3                        (d) a3 β 3a2b + 3ab2 β b3

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