Question

6. Without adding, find the sum.
(1) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15
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Answer 1

Answer:

64.

Step-by-step explanation:

For finding sum without actual addition if you have been given all odd no in an order count the no of numbers given. Then square it. Then you will have the sum of the numbers without actual addition.

In above question 8 no are given so it is 8^2.

Which is 64.

Hope it helps you out.....