# Class 7 Maths Chapter 13 Test Paper Set-3 Pdf Download CBSE

Test Paper Of Class 7 Maths Chapter 13 Exponents And Power

Chapter 13 Test Paper (03)

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## Class 7 Maths Chapter 13 Exponents And Power Test Paper Set-3 Text Form:-

PGRMS EDUCATION

SAMPLE PAPER (03)

CLASS: 7                                                         MAX. MARKS :30 SUBJECT: MATHEMATICS                             TIME: 1:30 HOUR CH: 12 (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 ā A

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

1. [(-3)2]3 is equal to

(a) (-3)8                  (b) (-3)6                    (c) (-3)5                    (d) 9-3)23

2. The standard form of the number 12345 is

(a) 1234.5 Ć 101                                    (b) 123.45 Ć 102

(c) 12.345 Ć 103                                    (d) 1.2345 Ć 104

3. Cube of -1/4 is

(a) ā1/12               (b) 1/16                   (c) -1/64                    (d) 1/64

4. In standard form 72 crore is written as

(a) 72 Ć 107          (b) 72 Ć 108             (c) 7.2 Ć 108              (d) 7.2 Ć 107

5. x is a non-zero rational number. Product of the square of x with the cube of x is equal to the

(a) second power of x                          (b) third power of x

(c) fifth power of x                                (d) sixth power of x

Section ā B

6. Find the value of:

(i) 26                                                     (ii) 112

7. Express each of the following numbers using exponential notations:

(a) 1024                                               (b) 1029

8. Simplify:

(i) 0 Ć 102                                             (ii) 52 Ć 33

9. Express the following numbers in standard form:

(i) 39087.8                                           (ii) 3908.78

Section ā C

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

(i) 405                                      (ii) 540                               (iii) 3,600

11. Identify the greater number.

(a) 29 or 92                     (b) 7.9 Ć 104 or 5.28 Ć 105           (c) 26 or 62

12. Simplify:

(i) (ā3) Ć (ā2)3                        (ii) (ā3)2 Ć (ā5)2                   (iii) (ā2)3 Ć (ā10)3

Section ā D

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

(a) 125 x 52 x a7/103 x a4

(b) 34 x 123 x 36/25 x 63

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

(a) The distance between Earth and Moon is 384,000,000 m.

(b) Speed of light in vacuum is 300,000,000 m/s.

(c) Diameter of the Earth is 1,27,56,000 m.

(d) Diameter of the Sun is 1,400,000,000 m