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Without adding, find the sum. (i) 1 + 3 + 5 + 7 + 9 (ii) 1 + 3 + 5 + 7 + 9 + I1 + 13 + 15 + 17 +19 (iii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

 
Squares and Square Roots
Last Post by Shivani siva 3 years ago
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08/08/2021 11:05 am
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Deepak Rock 
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Without adding, find the sum.

(i) 1 + 3 + 5 + 7 + 9

(ii) 1 + 3 + 5 + 7 + 9 + I1 + 13 + 15 + 17 +19

(iii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

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class 8 cbse ncert squares square roots
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08/08/2021 11:07 am
Shivani siva 
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(i) 1 + 3 + 5 + 7 + 9

Sum of first five odd number = (5)2 = 25

(ii) 1 + 3 + 5 + 7 + 9 + I1 + 13 + 15 + 17 +19

Sum of first ten odd number = (10)2 = 100

(iii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

Sum of first thirteen odd number = (12)2 = 144

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Topic Tags:  class 8 (3408) , cbse (15084) , ncert (13840) , squares (20) , square roots (20) ,
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