Number Sense Memorization

11²

121

12²

144

13²

169

14²

196

15²

225

16²

256

17²

289

18²

324

19²

361

20²

400

21²

441

22²

484

23²

529

24²

576

25²

625

26²

676

27²

729

28²

784

29²

841

30²

900

31²

961

32²

1024

33²

1089

34²

1156

35²

1225

36²

1296

37²

1369

38²

1444

39²

1521

40²

1600

41²

1681

42²

1764

43²

1849

44²

1936

45²

2025

46²

2116

47²

2209

48²

2304

49²

2401

50²

2500

5³

125

6³

216

7³

343

8³

512

9³

729

10³

1000

11³

1331

12³

1728

13³

2197

14³

2744

15³

3375

16³

4096

17³

4913

18³

5832

19³

6859

20³

8000

2^4

16

2^5

32

2^6

64

2^7

128

2^8

256

2^9

512

2^10

1024

3^4

81

3^5

243

3^6

729

3^7

2187

5^4

625

5^5

3125

1/6 (decimal)

.1666

5/6 (decimal)

.8333

1/7 (decimal)

.142857

2/7 (decimal)

.285714

3/7 (decimal)

.428571

4/7 (decimal)

.571428

5/7 (decimal)

.714285

6/7 (decimal)

.857142

1/8 (decimal)

.125

3/8 (decimal)

.375

5/8 (decimal)

.625

7/8 (decimal)

.875

1/9 (percent)

11 1/9

2/9 (percent)

22 2/9

4/9 (percent)

44 4/9

5/9 (percent)

55 5/9

7/9 (percent)

77 7/9

8/9 (percent)

88 8/9

1/11 (percent)

9 1/11

2/11 (percent)

18 2/11

3/11 (percent)

27 3/11

4/11 (percent)

36 4/11

5/11 (percent)

45 5/11

6/11 (percent)

54 6/11

7/11 (percent)

63 7/11

8/11 (percent)

72 8/11

9/11 (percent)

81 9/11

10/11 (percent)

90 10/11

1/12 (percent)

8 1/3

5/12 (percent)

41 2/3

7/12 (percent)

58 1/3