-12 and +5
4 8 12
30
-17
You can multiply 12 by any number. For example 12 multiplied by 3 is 36 or 12 multiplied by 5 is 60
the first 5 multiplies of 5 are 5, 10, 15, 20, 25
5 10 15 20 25 30
13, 26, 39, 52, 65
2,6
Because 10 is a multiple of 5.2 x 5 = 10
140, 280, 420, 560, 700
168