Question

find square root of 441 by successive subtraction/repeated subtraction

Answer 1

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Answer 2

Answer:

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Step-by-step explanation:

441 - 1 = 440

440 - 3 = 437

437 - 5 = 432

432 - 7 = 425

435 - 9 = 426

426 - 11 = 415

415 - 13 = 402

402 - 15 = 387

387 - 17 = 370

370 - 19 = 351

351 - 21 = 330

330 - 23 = 307

307 - 25 = 282

282 - 27 = 255

255 - 29 = 226

226 - 31 = 195

195 - 33 = 162

162 - 35 = 127

127 - 37 = 90

80 - 39 = 41

41 - 41 = 0

it takes 21 steps to reach 0 by successive subtraction

Therefore , square root of 441 is 21