1. 5, 8, 11, 14, 17 , 20
2. 3, 6, 9, 12, 15 ,
18
3. 5, 10 , 15, 20, 25, 30
4. 40, 20, 16, 8, 4, 2, -2
5. 1, 5, 20, 24, 96, 100,
400, 404, 1616
6. 6, 7, 2, 5, 0 5, 0, 7, 2
Add 1, subtract 5, add 3, subtract 5, add 5, subtract 5, ...
7. 12, 14, 10, 16, 8, 18, 6, 20, 4
8. F, S, T, F, F, S, S, E
9. 0, 1, 10, 2, 100, 11, 1000, 3, 20,
101, 10000, 12, 100000, 1001, 110, 4,
1000000, 21, 10000000, 102
1010
1 = 20 | 0 |
2 = 21 | 1 |
3 = 31 20 | 10 |
4 = 22 | 2 |
5 = 51 30 20 | 100 |
6 = 31 21 | 11 |
7 = 71 50 30 20 | 1000 |
8 = 23 | 3 |
9 = 32 20 | 20 |
10 = 51 30 21 | 101 |
11 = 111 70 50 30 20 | 10000 |
12 = 31 22 | 12 |
13 = 131 110 70 50 30 20 | 100000 |
14 = 71 50 30 21 | 1001 |
15 51 31 20 | 110 |
16 24 | 4 |
17 = 171 = 130 110 70 50 30 20 | 1000000 |
18 32 21 | 21 |
19 = 191 = 170 = 130 110 70 50 30 20 | 10000000 |
20 = 510 30 22 | 102 |
21 = 71 50 31 20 | 1010 |
10. (1, 2), (9, 10), (14, 15)
11. (16, 8), (32, 24), (20, 12)
12. (16, 8), (32, 16), (42, 21)
13. (4, 6, 24), (5, 7, 35), (7, 9, 63)
14. e, f, e, f, c, d, g, h, g, h,
c, d, i, j, i
15. a, b, c, x, y, z, d, e, f, x,
y, z, g, h, i, x
16. a, c, e, g, i, k, m,
o
17. a, b, b, c, c, c, d, d, d, d,
e, e, e, e, e
18. a, x, b, y, c, z, a, x, b,
y, c, z, a, x, b, y
19. g, a, f, a, e, a, d,
a, c, a, b
20. a, b, c, a, c, d, a,
d, e, a, e
21. a, b, c, d, e, a, b,
c, d, a, b, c, a
22. g, h, j, k, m, n, p,
q, s, t, v, w, y
23. a, b, c, c, b, a, d, e, f,
f, e, d, g, h, i, i
24. a, c, f, h, k, m, p,
r, u
25. a, b, a, c, d, c, e, f, e,
g, h, g, i, j, i
26. a, b, c, a, b, c, d, a, b,
c, d, e, a
27. a, a, b, a, b, c, c, d, c,
d, e, e, f, e
28. a, b, c, a, d, e, f, d, g,
h, i, g, j, k, l, j
29. O, T, T, F, F, S, S,
E , N , T
30. S, M, T, W, T, F ,
S
31. 4, 4, 1, 2, 1, 1, 2, 2, 3, 3, 3,
3
32. 3, 3, 5, 4, 4, 3, 5, 5, 4, 3, 6, 6