Without actual addition, find the sum of:
(i) 1 + 3 +5 + 7 + 9 + 11 + 13 (ii) 1 + 3+ 5 +7 +9 + 11 + 13 + 15
Pls help me find the answer
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(i) 1 + 3 +5 + 7 + 9 + 11 + 13 = 49
(ii) 1 + 3+ 5 +7 +9 + 11 + 13 + 15 = 64
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Answer:
(I)38 (ii) 53 this is a correct answer
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