Răspuns :
1+5=6
6+6=12
12+7=19
19+8=27
27+9=36
36+10=46
46+11=57
57+12=69
as simple as that!
6+6=12
12+7=19
19+8=27
27+9=36
36+10=46
46+11=57
57+12=69
as simple as that!