Class 7 Maths Chapter 13 Test Paper Set-2 Pdf Download CBSE

Test Paper Of Class 7 Maths Chapter 13 Exponents And Power

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Chapter 13 Test Paper (02)

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Class 7 Maths Chapter 13 Exponents And Power Test Paper Set-2 Text Form:-

PGRMS EDUCATION

SAMPLE PAPER (02)

CLASS: 7                                                        MAX. MARKS : 30 SUBJECT: MATHEMATICS                            TIME: 1:30 HOUR CH: 13 (Exponents and Powers)

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. ( -7)⁵ x (-7)³ is equal to

(a) (-7)⁸                  (b) – (7)⁸                 (c) (-7)¹⁵                (d)   (-7)²  

2. For any two non-zero rational numbers x and y, x⁵ y⁵ ÷ is equal to

(a) (x÷y)¹               (b) (x÷y)⁰                (c) (x÷y)⁵               (d) (x÷y)¹⁰

3. Value of 10²² + 10²⁰ /10²⁰ is

(a) 10                    (b) 10⁴²                   (c) 101                   (d) 10²²

4. Square of (-2/3) is

(a) -2/3                  (b) 2/3                    (c) -4/9                   (d) 4/9

5. Which of the following is not true?

(a) 3² > 2³             (b) 4³ = 2⁶              (c) 3³ = 9                (d) 2⁵ > 5²

Section – B

6. Express the following numbers as a product of powers of prime factors: (i) 432                                                (ii) 16000

7. Simplify:

(i) 2³ × 5                                             (ii) 3 × 4⁴

8. Say true or false:

(i) 10 × 10¹¹ = 100¹¹                           (ii) 2³ > 5²

(iii) 2³ × 3² = 6⁵                                   (iv) 3⁰ = (1000)⁰

9. Using laws of exponents, simplify and write the answer in exponential form:

(iii) a³ × a²                                                                (iv) 7 ^x×7²

Section – C

10. Express each of the following as product of powers of their prime factors:

(i) 648                             (ii) 405                     (iii) 540

11. Identify the greater number.

(i) 2⁸  or 8²                      (ii) 100² or 2¹⁰⁰         (iii) 2¹⁰ or 10²

12. Simplify:

(i) 3 × 4⁴                        (ii) 0 × 10²                (iii) 5² × 3³

Section – D

13. Simplify and express each of the following in exponential form:

(a) 7⁸ x a¹⁰ b⁷ c¹²/7⁶ x a⁸ x b⁴ x c¹²

(b) 5⁴ x 7⁴ x 2⁷/8 x 49 x 5³

14. Express the number appearing in the following statements in standard form.

(a) 76,47,000                                 (b) 8,19,00,000

(c) 5, 83,00,00,00,000                   (d) 24 billion