Question 19. (c) (20 + 30 + 40) – (40 – 30 – 20) (i) (52)3 Find the value of Nov 26,2020 - Test: Exponents And Powers - 1 | 20 Questions MCQ Test has questions of Class 7 preparation. 4° × 6° + 100° The distance between Earth and Moon is 384,000 km. This test is Rated positive by 90% students preparing for Class 7.This MCQ test is related to Class 7 syllabus, prepared by Class 7 teachers. Question 1. Question 8: 5900 can be represented in standard form as. Verify the following: We have 32 = 3 × 3 = 9 Base is 5 5 and 7 7 and exponent of 5 5 is 2 2 and 7 7 is 3. (c) (20 + 30 + 40) – (40 – 30 – 20) So, 2 6 = 8 2. Solution : 5900 = 59 * 100 = 5.9 * 10 * 100 = 5.9 * 1000 = 5.9 * 10 3. Correct Option is : 3. Solution: = 7 × 104 + 8 × 102 + 2 × 101 + 4 × 100 Maths Important Questions Class 7 are given below. Log in, Concise Mathematics Class 10 ICSE Solutions 2018, Click to share on WhatsApp (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Pinterest (Opens in new window). Class 7 Maths Exponents And Powers Exercise 13.1 ; Class 7 Maths Chapter 13 Exponents And Powers Exercise 13.3 ; Exponents and Powers-Chapter 12/MCQ ; Exponents And Powers | Class 7 Maths Important Questions For Practice ; Exponents and Powers – Class 8/MCQ ; Class 7 Maths Chapter 1 Integers Exercise 1.4 Solutions 5.9 * 10 3. Solution: Express the following in exponential form: Thus, 500 = 22 × 53, Question 7. Question 7: Which power is equal to 2 6. (i) 405 Find the value of x, if Class 7 Maths Chapter 13 Exponents and Powers all exercises solutions with explanation are given below. = 216 × 1 + 81 – 1 Question 9: (i) 7 × 108 + 3 × 105 + 7 × 102 + 6 × 101 + 9 4. (b) (80 – 20) ÷ (80 + 20) (ii) 1,69,835 Write the following in expanded form: Do not worry, Visit Math Square and learn what is Exponents and Powers Class 7 and how to solve problems on Class 7 Exponents and Powers. 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(iii) 500 = 700300769 (i) 144 Multiple Choice Questions A short maths quiz for the students of grade 7; It will cover questions from topics such as decimals, fractions, angle measures, percent, etc. Exponents and Powers Class 7 MCQs Questions with Answers. Answers to each and every question is … (iv) [(5)2]2 = 52×2 = 54. Express each of the following as a product of prime factors is the exponential form: Here you can get Class 7 Important Questions Maths based on NCERT Text book for Class VII. (iv) (10000)0 = 1 [∵ a0 = 1], Question 5. Simplify and write in exponential form: Correct Option is : 2. Thus, 504 = 23 × 32 × 71 (iv) (10000)0 None of these. (i) (-1)1000 5.9 * 10 2. (ii) 63 × 70 + (-3)4 – 90 Your email address will not be published. Thus, 405 = 34 × 51 (ii) 384 × 147. = 700000000 + 300000 + 700 + 60 + 9 Thus, 384 × 147 = 27 × 32 × 72, Question 12. Solution: Question 11. (6) (80 – 20) ÷ (80 + 20) = (1 – 1) ÷ (1 + 1) = 0 ÷ 2 = 0 (i) 8,19,00,000 = 8.19 × 107 Express the following in standard form: = 7 × 10000 + 0 × 1000 + 8 × 100 + 2 × 10 + 4 × 100 Thus, 144 = 24 × 32 = 7 × 100000000 + 3 × 100000 + 7 × 100 + 6 × 10 + 9 = 296, Question 13. Thus, 729 × 125 = 3 6 × 5 3. 2. Answer: (b) 10 4 Hint: 10000 = 10 × 10 × 10 × 10 = 10 4 These are in updated form editing errors and including more steps to make it simple. = 1 × 100000 + 6 × 10000 + 9 × 1000 + 8 × 100 + 3 × 10 + 5 × 100 Since 9 > 8 Chapter 13 Class 7 Exponents and Powers Get solutions of all NCERT Exercise questions and examples free at Teachoo. 500 = 2 × 2 × 5 × 5 × 5 = 22 × 53 = (1 + 1 + 1) – (1 – 1 – 1) [∵ a0 = 1] (7° ÷ 30) × (8°- 5°) 6. (iii) (-1)121 = -1 [∵ (-1)odd number = -1] Are you confused while solving problems on Exponents and Powers Class 7? Express 343 as a power of 7. (ii) 4 × 4 × 4 × 5 × 5 × 5 = 43 × 53 Question 11. (ii) 4 × 107 + 6 × 103 + 5 (i) 5 × 5 × 5 × 5 × 5 (i) 70,824 (i) 729 × 125 (i) 729 × 125 = 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 5 = 36 × 53 Simplify the following and write in exponential form: (ii) (1)250 = 1 [∵ (1)even number = 1] (i) (52)3 = 52×3 = 56 (a) 30 ÷ 40 Grade 7 - Exponents and Powers Unlimited Worksheets Every time you click the New Worksheet button, you will get a brand new printable PDF worksheet on Exponents and Powers . Solution: (i) 103 × 90 + 33 × 2 + 70 ... Quiz for Exponents and Powers. Question 8. (a) We have 30 ÷ 40 = 1 ÷ 1 = 1 [∵ a0 = 1] (v) 2 ×2 ×a×a 2 × 2 × a × a. (ii) 1,69,835 = 40006005. Express each of the following as a product of prime factors is the exponential form: (i) 729 × 125. Thus, 343 = 73, Question 2. NCERT Exemplar Class 7 Maths Book PDF Download Chapter 11 Exponents and Powers Solutions. Solution: (i) 729 × 125 = 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 5 = 3 6 × 5 3. Solution: So, exponential form is = = 22×a2 2 2 × a 2. 2 2 is multiplied 2 2 times, a is multiplied 2 2 times. (iii) 6892.25 = 6.89225 × 103. 0.0034256 Find the value of: 4. Thus, 225 = 32 × 52, Question 4. Solution: (i) We have 1. a) 2 3 × 2 4 b) 6 × 6 3 c) 5 × 5 2 × 5 3 Solution a) Use the definition of exponents to write expressions as product of 2 then rewrite as in exponent form. 144 = 2 × 2 × 2 × 2 × 3 × 3 = 24 × 32 (ii) (23)3 MCQ Questions for Class 7 Maths with Answers, MCQ Questions for Class 12 Economics Chapter 12 Open Economy Macroeconomics with Answers, MCQ Questions for Class 12 Economics Chapter 11 Government Budget and the Economy with Answers, MCQ Questions for Class 12 Economics Chapter 10 Determination of Income and Employment with Answers, MCQ Questions for Class 12 Economics Chapter 9 Money and Banking with Answers, MCQ Questions for Class 12 Economics Chapter 8 National Income Accounting with Answers, MCQ Questions for Class 12 Economics Chapter 6 Non-competitive Markets with Answers, MCQ Questions for Class 12 Economics Chapter 5 Market Equilibrium with Answers, MCQ Questions for Class 12 Economics Chapter 4 The Theory of the Firm under Perfect Competition with Answers, MCQ Questions for Class 12 Economics Chapter 3 Production and Costs with Answers, MCQ Questions for Class 11 Accountancy with Answers Chapter Wise PDF Download, Concise Mathematics Class 10 ICSE Solutions.