Question

Find the sum of the following without adding:
(i) 1+3+5
(ii) 1+3+5+ 7 +9
(iii) 1+3+5+ 7 + 9 +11+13
(iv) 1+3+5+ 7 + 9 +11+13+15+17 +19​

Answer 1

Answer:

I) 9 ii) 25 iii) 49 iv) IDK.

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