Class 7 Maths Chapter 12 Test Paper Set-4 Pdf Download CBSE
Test Paper Of Class 7 Maths Chapter 12 Algebraic Expression
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Chapter 12 Test Paper (04)
Class 7 Maths Chapter 12 algebraic Expression Test Paper Set-4 Text Form:-
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CLASS: 7 MAX. MARKS :30 SUBJECT: MATHEMATICS TIME: 1:30 HOUR CH: 7 (PERIMETER AND AREA)
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. An algebraic expression containing three terms is called a
(a) monomial (b) binomial
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(c) trinomial (d) All of these
2. Factors of –5x2 y2 z are
(a) – 5 × x × y × z (b) – 5 × x2× y × z
(c) – 5 × x × x × y × y × z (d) – 5 × x × y × z2
3. The subtraction of 5 times of y from x is
(a) 5x – y (b) y – 5x
(c) x – 5y (d) 5y – x
4. The expression for the number of diagonals that we can make from one vertex of a n sided polygon is:
(a) 2n + 1 (b) n – 2 (c) 5n + 2 (d) n – 3
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) – p2q2 + 7pq (ii) 1.2 a + 0.8 b
(iii) 1 + t + t2 + t3 (iv) x + 2xy + 3y
7. Classify into monomials, binomials and trinomials.
(i) z2 – 3z + 8 (ii) a2 + b2
(iii) z2 + z (iv) 1 + x + x2
8. Identify like terms in the following:
10pq, 7p, 8q, – p2q2, –7qp, – 100q, –23, 12q2p2,
9. Get the algebraic expressions in the following cases using variables, constants and arithmetic operations.
(i) Product of numbers y and z subtracted from 10.
(ii) Sum of numbers a and b subtracted from their product.
Section – C
10. Add:
(i) a + b – 3, b – a + 3, a – b + 3
(ii) 14x + 10y – 12xy – 13, 18 – 7x – 10y + 8xy, 4xy
(iii) 5m – 7n, 3n – 4m + 2, 2m – 3mn – 5
11. Subtract:
(i) (a – b) from (a + b)
(ii) – x2 + 10x – 5 from 5x – 10
(iii) 5a2 – 7ab + 5b2 from 3ab – 2a2 – 2b2
12. Simplify the expressions and find the value if x is equal to 2
(i) x + 7 + 4 (x – 5)
(ii) 3 (x + 2) + 5x – 7
(iii) 6x + 5 (x – 2)
Section – D
13. (a) If P = –(x – 2), Q = –2(y +1) and R = –x + 2y, find a, when P + Q + R = ax.
(b). From the sum of x2 – y2 – 1, y2 – x2 – 1 and 1 – x2 – y2 subtract – (1 + y2).
14. Find the values of following polynomials at m = 1, n = –1 and p = 2:
(a) m3 + n3 + p3
(b) mn + np + pm
(c) m3 + n3 + p3 – 3mnp
(d) m2n2 + n2p2 + p2m2
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