Math, asked by ramagirianisha, 7 months ago

Without adding, find the sum.
a. 1 + 3 + 5 + 7 + 9 b. 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 +21 + 23

Answers

Answered by anujrai59

0

1+3+5+7+9 this all digit are 5 so 5×5=25

Answered by Anonymous

9

Answer:

it has 5 odd numbers so by odd numbers adding formula 5²= 25
it has 12 consecutive odd numbers so by odd numbers adding formula 12²=144

hope this will help you mark me as the brainliest plzz ✌️✌️✌️✌️

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