7. Without adding, find the sum.
(i) 1 + 3 + 5 + 7 +9
(ü) 1+3+5+ 7 + 9 + 11 + 13 + 15 + 17 +19
(iii) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23
Answers
Answered by
4
Answer:
Answer I) 25
Answer 2)100
Answer 3)144
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