Question

Complete as sequências de modo que cada uma fique com 12 números.

Answer 1

12, 10, 8, 6, 4, 2, -1, -3, -4, -6, -8, -10
42, 35, 28, 21, 14, 7, 0, -7, -14, -21, -28, -35
32, 27, 22, 17, 12, 7, 2 ,-3, -8, -13, -18,- 23.

Answer 2

a
12,10,8,6
6 - 2 = 4
4 - 2 = 2
2 - 2 = 0
0-2 = -2
-2 - 2 = -4
-4 - 2 = -6
-6 -8 = -10

b
42,35,28,21

21 - 7 = 14
14-7 = 7
7 - 7 = 0
0 - 7 = -7
-7 - 7 = -14
-14 - 7 = -21 
-21 - 7 = -28
-28 - 7 = -35
c
32,27,22,17
17 - 5 = 12
12 - 5 =  7
7 - 5 =   2
2 - 5 =  -3
-3 - 5 = -8
-8 - 5 = -13
-13 - 5 = -18
-18 - 5 = -23