# EEG's Cheat Sheet of Certain Facts

Perfect Squares

11 × 11 = 121

12 × 12 = 144

13 × 13 = 169

14 × 14 = 196

15 × 15 = 225

16 × 16 = 256

17 × 17 = 289

18 × 18 = 324

19 × 19 =361

21 × 21 = 441

22 × 22 = 484

23 × 23 = 529

24 × 24 = 576

25 × 25 =625

Multiples of 12

12 × 2 = 24

12 × 3 = 36

12 × 4 = 48

12 × 5 = 60

12 × 6 = 72

12 × 7 = 84

12 × 8 = 96

12 × 9 = 108

12 × 11 = 132

12 × 12 = 144

12 × 13 = 156

12 × 14 = 168

12 × 15 = 180

12 × 16 = 192

Multiples of 14

14 × 2 = 28

14 × 3 = 42

14 × 4 = 56

14 × 5 = 70

14 × 6 = 84

14 × 7 = 98

14 × 8 = 112

14 × 9 = 126

14 × 11 = 154

14 × 12 = 168

14 × 13 = 182

14 × 14 = 196

14 × 15 = 210

Multiples of 1/4

1/4 = 0.25

2/4 = 0.5 / 25 × 2 = 50

3/4 = 0.75 / 25 × 3 = 75

75 × 2 = 150 / 75 × 3 = 225

75 × 4 = 300 / 75 × 5 = 375

Multiples of 1/8

1/8 = 0.125

2/8 = 0.25 / 125 × 2 = 250

3/8 = 0.375 / 125 × 3 = 375

4/8 = 0.5 / 125 × 4 = 500

5/8 = 0.625 / 125 × 5 = 625

6/8 = 0.75 / 125 × 6 = 750

7/8 = 0.875 / 125 × 7 = 875