Exercise 11.1 | Ch 11 Exponents and Powers | Class 7 Maths NCERT | New Syllabus 2025

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Mann Ki Ganit

Mann Ki Ganit

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EXERCISE 13.1
1. Find the value of:
(i) 26 (ii) 93 (iii) 112 (iv) 54
2. Express the following in exponential form:
(i) 6 × 6 × 6 × 6 (ii) t × t (iii) b × b × b × b
(iv) 5 × 5× 7 × 7 × 7 (v) 2 × 2 × a × a (vi) a × a × a × c × c × c × c × d
3. Express each of the following numbers using exponential notation:
(i) 512 (ii) 343 (iii) 729 (iv) 3125
4. Identify the greater number, wherever possible, in each of the following?
5. Express each of the following as product of powers of their prime factors:
(i) 648 (ii) 405 (iii) 540 (iv) 3,600
6. Simplify:
7. Simplify:
(i) (- 4)3 (ii) (-3) × (-2)3 (iii) (-3)2× (-5)2
(iv) (-2)3× (-10)3
8. Compare the following numbers:
(i) 2.7 × 1012 ; 1.5 × 108 (ii) 4 × 1014 ; 3 × 101
एक्सक्लूसिव 13.1
1. मूल्य का पता लगाएं:
(i) 26 (ii) 93 (iii) 112 (iv) 54
2. घातांक रूप में निम्न व्यक्त करें:
(i) 6 × 6 × 6 × 6 (ii) t × t (iii) b × b × b × b
(iv) 5 × 5 × 7 × 7 × 7 (v) 2 × 2 × a a (vi) a × a × a × c × c × c × c × d
3. घातीय संकेतन का उपयोग करते हुए प्रत्येक निम्नलिखित संख्याओं को व्यक्त करें:
(i) 512 (ii) 343 (iii) 729 (iv) 3125
4. निम्नलिखित में से प्रत्येक में, जहाँ भी संभव हो, अधिक से अधिक संख्या की पहचान करें?
5. निम्नलिखित में से प्रत्येक को उनके प्रमुख कारकों की शक्तियों के उत्पाद के रूप में व्यक्त करें:
(i) 648 (ii) 405 (iii) 540 (iv) 3,600
6. सरल करें:
7. सरलीकृत करें:
(i) (- ४) ३ (ii) (-३) × (-२) ३ (iii) (-३) २ × (-५) २
(iv) (-2)3× (-10)3
8. निम्नलिखित संख्याओं की तुलना करें:
(i) 2.7 × 1012; 1.5 × 108 (ii) 4 × 1014; 3 × 101
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