2013 Revised GRE exam Flashcards Sample

1. Please visit: http://www.GREexam.weebly.com/ for more than 5000 flashcards =1^3 1a

2. 1 1b

3. =2^1 2a

4. 2 2b

5. =2^2 3a

6. 4 3b

7. =2^3 4a

8. 8 4b

9. =2^4 5a

10. 16 5b

11. =2^5 6a

12. 32 6b

13. =2^6 7a

14. 64 7b

15. =2^7 8a

16. 128 8b

17. =2^8 9a

18. 256 9b

19. =2^9 10a

20. 512 10b

21. =2^10 11a

22. 1,024 11b

23. =3*3 12a

24. 9 12b

25. =3*4 13a

26. 12 13b

27. =3*5 14a

28. 15 14b

29. =3*6 15a

30. 18 15b

31. =3*8 16a

32. 24 16b

33. =3*9 17a

34. 27 17b

35. =3*10 18a

36. 30 18b

37. =3*11 19a

38. 33 19b

39. =3*12 20a

40. 36 20b

41. =3*13 21a

42. 39 21b

43. =3*14 22a

44. 42 22b

45. =3*15 23a

46. 45 23b

47. =3*16 24a

48. 48 24b

49. =3*17 25a

50. 51 25b

51. =3*18 26a

52. 54 26b

53. =3*19 27a

54. 57 27b

55. =3*20 28a

56. 60 28b

57. =3^1 29a

58. 3 29b

59. =3^2 30a

60. 9 30b

61. =3^3 31a

62. 27 31b

63. =3^4 32a

64. 81 32b

65. =3^5 33a

66. 243 33b

67. =3^6 34a

68. 729 34b

69. =4*4 35a

70. 16 35b

71. =4*5 36a

72. 20 36b

73. =4*6 37a

74. 24 37b

75. =4*7 38a

76. 28 38b

77. =4*8 39a

78. 32 39b

79. =4*9 40a

80. 36 40b

81. =4*10 41a

82. 40 41b

83. =4*11 42a

84. 44 42b

85. =4*12 43a

86. 48 43b

87. =4*13 44a

88. 52 44b

89. =4*14 45a

90. 56 45b

91. =4*15 46a

92. 60 46b

93. =4*16 47a

94. 64 47b

95. =4*17 48a

96. 68 48b

97. =4*18 49a

98. 72 49b

99. =4*19 50a

100. 76 50b

101. =4*20 51a

102. 80 51b

103. =4^1 52a

104. 4 52b

105. =4^2 53a

106. 16 53b

107. =4^3 54a

108. 64 54b

109. =4^4 55a

110. 256 55b

111. =4^5 56a

112. 1,024 56b

113. =4^6 57a

114. 4,096 57b

115. =5*5 58a

116. 25 58b

117. =5*6 59a

118. 30 59b

119. =5*7 60a

120. 35 60b

121. =5*8 61a

122. 40 61b

123. =5*9 62a

124. 45 62b

125. =5*10 63a

126. 50 63b

127. =5*11 64a

128. 55 64b

129. =5*12 65a

130. 60 65b

131. =5*13 66a

132. 65 66b

133. =5*14 67a

134. 70 67b

135. =5*15 68a

136. 75 68b

137. =5*16 69a

138. 80 69b

139. =5*17 70a

140. 85 70b

141. =5*18 71a

142. 90 71b

143. =5*19 72a

144. 95 72b

145. =5*20 73a

146. 100 73b

147. =5^1 74a

148. 5 74b

149. =5^2 75a

150. 25 75b

151. =5^3 76a

152. 125 76b

153. =5^4 77a

154. 625 77b

155. =5^5 78a

156. 3,125 78b

157. =6*6 79a

158. 36 79b

159. =6*7 80a

160. 42 80b

161. =6*8 81a

162. 48 81b

163. =6*9 82a

164. 54 82b

165. =6*10 83a

166. 60 83b

167. =6*11 84a

168. 66 84b

169. =6*12 85a

170. 72 85b

171. =6*13 86a

172. 78 86b

173. =6*14 87a

174. 84 87b

175. =6*15 88a

176. 90 88b

177. =6*16 89a

178. 96 89b

179. =6*17 90a

180. 102 90b

181. =6*18 91a

182. 108 91b

183. =6*19 92a

184. 114 92b

185. =6*20 93a

186. 120 93b

187. =6^1 94a

188. 6 94b

189. =6^2 95a

190. 36 95b

191. =6^3 96a

192. 216 96b

193. =6^4 97a

194. 1,296 97b

195. =6^5 98a

196. 7,776 98b

197. =6^6 99a

198. 46,656 99b

199. =7*7 100a

200. 49 100b

201. =7*8 101a

202. 56 101b

203. =7*9 102a

204. 63 102b

205. =7*10 103a

206. 70 103b

207. =7*11 104a

208. 77 104b

209. =7*12 105a

210. 84 105b

211. =7*13 106a

212. 91 106b

213. =7*14 107a

214. 98 107b

215. =7*15 108a

216. 105 108b

217. =7*16 109a

218. 112 109b

219. =7*17 110a

220. 119 110b

221. =7*18 111a

222. 126 111b

223. =7*19 112a

224. 133 112b

225. =7*20 113a

226. 140 113b

227. =7^1 114a

228. 7 114b

229. =7^2 115a

230. 49 115b

231. =7^3 116a

232. 343 116b

233. =7^4 117a

234. 2,401 117b

235. =8*8 118a

236. 64 118b

237. =8*9 119a

238. 72 119b

239. =8*10 120a

240. 80 120b

241. =8*11 121a

242. 88 121b

243. =8*12 122a

244. 96 122b

245. =8*13 123a

246. 104 123b

247. =8*14 124a

248. 112 124b

249. =8*15 125a

250. 120 125b

251. =8*16 126a

252. 128 126b

253. =8*17 127a

254. 136 127b

255. =8*18 128a

256. 144 128b

257. =8*19 129a

258. 152 129b

259. =8*20 130a

260. 160 130b

261. =8^1 131a

262. 8 131b

263. =8^2 132a

264. 64 132b

265. =8^3 133a

266. 512 133b

267. =8^4 134a

268. 4,096 134b

269. =9*9 135a

270. 81 135b

271. =9*10 136a

272. 90 136b

273. =9*11 137a

274. 99 137b

275. =9*12 138a

276. 108 138b

277. =9*13 139a

278. 117 139b

279. =9*14 140a

280. 126 140b

281. =9*15 141a

282. 135 141b

283. =9*16 142a

284. 144 142b

285. =9*17 143a

286. 153 143b

287. =9*18 144a

288. 162 144b

289. =9*19 145a

290. 171 145b

291. =9*20 146a

292. 180 146b

293. =9^1 147a

294. 9 147b

295. =9^2 148a

296. 81 148b

297. =9^3 149a

298. 729 149b

299. =9^4 150a

300. 6,561 150b

301. =9^5 151a

302. 59,049 151b

303. =10^1 152a

304. 10 152b

305. =10^2 153a

306. 100 153b

307. =10^3 154a

308. 1,000 154b

309. =10^4 155a

310. 10,000 155b

311. =10^5 156a

312. 100,000 156b

313. =10^6 157a

314. 1,000,000 157b

315. =10^7 158a

316. 10,000,000 158b

317. =10^8 159a

318. 100,000,000 159b

319. =10^9 160a

320. 1,000,000,000 160b

321. =10^10 161a

322. 10,000,000,000 161b

323. =11*11 162a

324. 121 162b

325. =11*12 163a

326. 132 163b

327. =11*13 164a

328. 143 164b

329. =11*14 165a

330. 154 165b

331. =11*15 166a

332. 165 166b

333. =11*16 167a

334. 176 167b

335. =11*17 168a

336. 187 168b

337. =11*18 169a

338. 198 169b

339. =11*19 170a

340. 209 170b

341. =11*20 171a

342. 220 171b

343. =11^2 172a

344. 121 172b

345. =12*12 173a

346. 144 173b

347. =12*13 174a

348. 156 174b

349. =12*14 175a

350. 168 175b

351. =12*15 176a

352. 180 176b

353. =12*16 177a

354. 192 177b

355. =12*17 178a

356. 204 178b

357. =12*18 179a

358. 216 179b

359. =12*19 180a

360. 228 180b

361. =12*20 181a

362. 240 181b

363. =13*13 182a

364. 169 182b

365. =13*14 183a

366. 182 183b

367. =13*15 184a

368. 195 184b

369. =13*16 185a

370. 208 185b

371. =13*17 186a

372. 221 186b

373. =13*18 187a

374. 234 187b

375. =13*19 188a

376. 247 188b

377. =13*20 189a

378. 260 189b

379. =14*14 190a

380. 196 190b

381. =14*15 191a

382. 210 191b

383. =14*16 192a

384. 224 192b

385. =14*17 193a

386. 238 193b

387. =14*18 194a

388. 252 194b

389. =14*19 195a

390. 266 195b

391. =14*20 196a

392. 280 196b

393. =15*15 197a

394. 225 197b

395. =15*16 198a

396. 240 198b

397. =15*17 199a

398. 255 199b

399. =15*18 200a

400. 270 200b

401. =15*19 201a

402. 285 201b

403. =15*20 202a

404. 300 202b

405. =15^2 203a

406. 225 203b

407. =16*16 204a

408. 256 204b

409. =16*17 205a

410. 272 205b

411. =16*18 206a

412. 288 206b

413. =16*19 207a

414. 304 207b

415. =16*20 208a

416. 320 208b

417. =17*17 209a

418. 289 209b

419. =17*18 210a

420. 306 210b

421. =17*19 211a

422. 323 211b

423. =17*20 212a

424. 340 212b

425. =18*18 213a

426. 324 213b

427. =18*19 214a

428. 342 214b

429. =18*20 215a

430. 360 215b

431. =19*19 216a

432. 361 216b

433. =19*20 217a

434. 380 217b

435. =20*20 218a

436. 400 218b

437. =20^2 219a

438. 400 219b

439. =25^2 220a

440. 625 220b

441. 0/1 = 221a

442. 0 (any fraction with 0 on top is 0) 221b

443. 4/0 = 222a

444. Undefined 222b

445. 8^(1/3) 223a

446. 2 223b

447. 27^(1/3) 224a

448. 3 224b

449. 30:60:90 Right Triangle (Lenghts) 225a

450. x:x^(1/3):2x 225b

451. 64^(1/3) 226a

452. 4 226b

453. 125^(1/3) 227a

454. 5 227b

455. 216^(1/3) 228a

456. 6 228b

457. 343^(1/3) 229a

458. 7 229b

459. 512^(1/3) 230a

460. 8 230b

461. 729^(1/3) 231a

462. 9 231b

463. Adding and Subtracting Decimals 232a

464. Line up the decimal points and proceed as usual 232b

465. Adding or subtracting fractions with different denominators 233a

466. Multiply both fractions to get a common denominator add or subtract as usual 233b

467. Adding or subtracting fractions with the same denominator 234a

468. Add or subtract the numbers on top and keep the same denominator 234b

469. Another way to write cube root 5 235a

470. 5^(1/3) 235b

471. Any number to the 0 power is? 236a

472. one (1) 236b

473. Any number to the first power is? 237a

474. itself 237b

475. Any number to the negative power (y) is equal to? 238a

476. The reciprocal of the same number to the positive power (y). (eg 3^-2 = 1/(3^2) = 1/9) 238b

477. Area of a circle? 239a

478. pr^2 239b

479. Area of a parallelogram? 240a

480. Base * Height 240b

481. Area of a triangle? 241a

482. (b*h)/2 241b

483. Basic probability formula? 242a

484. number of outcomes you want/total number of possible outcomes 242b

485. Circumference of a circle? 243a

486. 2pr 243b

487. Combinations: single source, order doesn't matter 244a

488. Start with the number of permutations, that is the numerator(top). The Denominator is the number of combinations (eg 432*1) 244b

489. Distance Formula? 245a

490. Rate * Time = Distance (Hint: Draw a chart) 245b

491. Distributing Exponents 246a

492. When several #s are inside parenthesis, the exponent outside the parentheses must be distributed to all the #s within (4y)^2 = ((4)^2)((y)^2) = (4^2) * (y^2) = 16y^2 246b

493. Dividing Decimals 247a

494. Move the decimal to the right on both numbers until there is nothing to the right of the decimal 247b

495. Dividing Fractions 248a

496. Invert (reciprocal) the second fraction and multiply 248b

497. Does (x^2 + y^2 + z^2)/(x^2 + y^2) = z^2? 249a

498. NO 249b

499. Does x^2 + x^3 = x^5? 250a

500. NO 250b

501. Does x^6 - x^2 = x^4? 251a

502. NO 251b

503. Equation for a line? 252a

504. y=mx+b where b is the y- intercept (the point which crosses the y-axis) m is the slope of the line, and x & y are the coordinates of some point on that line 252b

505. even + even = 253a

506. even 253b

507. even + odd = 254a

508. odd 254b

509. even x even = 255a

510. even 255b

511. even x odd = 256a

512. even 256b

513. Exponents - Dividing numbers with same base 257a

514. subtract the bottom exponents from the top exponents (3^6 / 3^2 = 3^4) 257b

515. Exponents - Multiplying numbers with same base 258a

516. add their exponents (6^2 *6^3 = 6^5) 258b

517. Exponents - Raising a power to a power 259a

518. Multiply the exponents (4^3)^2 = 4^(3*2) = 4^6 259b

519. Factor x^2-2xy+y^2 260a

520. (x-y)^2 260b

521. Factor x^2-y^2 261a

522. (x+y)(x-y) 261b

523. Factor x^2+2xy+y^2 262a

524. (x+y)^2 262b

525. How do you find the median of a set of numbers? 263a

526. arrainge #s from least to greatest and take the middle number or the average of the two middle #s 263b

527. How do you find the mode of a set of numbers? 264a

528. Pick the # that occurs most frequently 264b

529. how do you find the range of a set of numbers? 265a

530. subtract the smallest number from the greatest number 265b

531. How do you find the slope of a line? 266a

532. Difference in the y- coordinates over the difference in the x coodinates 266b

533. How do you tell if it's a permutation or combination? 267a

534. Permutations ask for "arraingements" Combinations ask for "Groups" 267b

535. How do you unfactor a quadratic equation? (x+2)(x+5) 268a

536. FOIL X^2+7x+10 268b

537. If you raise a negative number to an even power, what happens to the number? 269a

538. It becomes positive 269b

539. If you raise a negative number to an odd power, what happens to the number? 270a

540. It gets smaller 270b

541. If you raise a positive fraction that is less than 1 to a power, what happens to the fraction? 271a

542. It gets smaller 271b

543. Key to percent increase/decrease 272a

544. amount of increase/original amount = x/100 (Then cross multiply to find x) 272b

545. multiplying decimals 273a

546. ignor decimal points and multiply the two numbers, then count the digits to the right of the decimal points in the original numbers and place the decimal so there are the same number of digits to the right of the decimal 273b

547. Multiplying Fractions 274a

548. Multiply the numerators and put the product over the product of the denominators 274b

549. odd + odd = 275a

550. even 275b

551. odd x odd = 276a

552. odd 276b

553. Odds that at least one thing will happen? 277a

554. Will = 1 - Won't 277b

555. Odds that something doesn't happen? 278a

556. Won't = 1 - Will 278b

557. Order of operations 279a

558. PEMDAS (parenthesis, Exponents, Multiplication, Division, Addition, Subtraction) 279b

559. Permutations: single source, order matters 280a

560. Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller 280b

561. Permutations: single source, order matters BUT only for a selection 281a

562. Multiply the # of choices for each of the spots--but the number of choices keeps getting smaller, stop when all the places are taken 281b

563. Probability that A and B will both happen? 282a

564. A*B (Multiply both probabilities) 282b

565. Probability that A or B will happen? 283a

566. A+B (Add both probabilities) 283b

567. Problem that asks you to choose a # of items to fill specific spots, when each spot is filled from a different source? 284a

568. Multiply the # of choices for each of the spots 284b

569. Pythagorean Triples (lengths)? 285a

570. 3:4:5 -- 5:12:13 -- 7:24:25 285b

571. Right Isosceles triangle (lengths)? 286a

572. Side, Side, Side^2 286b

573. Rules for "Plugging in" for cosmic problems 287a

574. 1)Pick numbers that make sense for the variable in the problem 2)Find an answer using those numbers to get the "target answer" 3)plug your #s into the answer choices to see which choice equals the target answer 287b

575. Rules for "Plugging in" the answer choices 288a

576. 1)Start with choice "c" plug that into the problem to see if it works 2)If "c" is to small go larger 3) if "c" is too big try smaller 4)If you don't know try them all 288b

577. SQRT 1,000,000 289a

578. 1,000 289b

579. SQRT 1,024 290a

580. 32 290b

581. SQRT 1,296 291a

582. 36 291b

583. SQRT 2 292a

584. 1.414213562 292b

585. SQRT 2,401 293a

586. 49 293b

587. SQRT 3 294a

588. 1.732050808 294b

589. SQRT 4 295a

590. 2 295b

591. SQRT 4,096 296a

592. 64 296b

593. SQRT 6,561 297a

594. 81 297b

595. SQRT 9 298a

596. 3 298b

597. SQRT 10,000 299a

598. 100 299b

599. SQRT 10,000,000,000 300a

600. 100,000 300b

601. SQRT 16 301a

602. 4 301b

603. SQRT 25 302a

604. 5 302b

605. SQRT 36 303a

606. 6 303b

607. SQRT 49 304a

608. 7 304b

609. SQRT 64 305a

610. 8 305b

611. SQRT 81 306a

612. 9 306b

613. SQRT 100 307a

614. 10 307b

615. SQRT 100,000,000 308a

616. 10,000 308b

617. SQRT 121 309a

618. 11 309b

619. SQRT 169 310a

620. 13 310b

621. SQRT 225 311a

622. 15 311b

623. SQRT 256 312a

624. 16 312b

625. SQRT 400 313a

626. 20 313b

627. SQRT 625 314a

628. 25 314b

629. SQRT 729 315a

630. 27 315b

631. The solvability rule 316a

632. You must have at least as many distinct equations as you have variables 316b

633. Two fractions that equal each other with one variable how do you solve for x? 317a

634. Cross multiply 317b

635. Unfactor (x-y)^2 318a

636. x^2-2xy+y^2 318b

637. Unfactor (x+y)(x-y) 319a

638. x^2-y^2 319b

639. Unfactor (x+y)^2 320a

640. x^2+2xy+y^2 320b

641. What happens if you multiply or divide both sides of an inequality by a negative number? 321a

642. The direction of the inequality symbol changes 321b

643. What is the difference between a permutation or a combination? 322a

644. Combinations don't care about the order of the problems 322b

645. When is a number divisible by 3? 323a

646. if the sum of its can be divided evenly by 3 (216, is because 2+1+6 is divisible by 3) 323b

648. if the number formed by it's last 2 digits is divisible by 4 (3,028 is because 28 is divisible by 4) 324b

650. if it is divisible by both 2 and 3 (318 is because it is even and the sum of 3+1+8 is divisible by 3) 325b

651. Work Problems? 326a

652. simmilar to distance but ... Think how much of the job can be done in one hour (as a fration of the whole). 326b

2013 Revised GRE exam Flashcards Sample

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2013 Revised GRE exam Flashcards Sample