Math, asked by rsinghnarayan1982, 4 months ago

Find the sum : 9+19+29+....+99

Answers

Answered by Anonymous

3

Answer:

the sum of 9+19+29+39+49+59+69+79+89+99 = 540

Step-by-step explanation:

9+19+29+39+49+59+69+79+89+99

28 + 68 + 108 + 148 + 188

96 + 256 + 188

352 + 188

540

hope it's helpful

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