Условие:

128 + 6
117 + 8
125 + 8
30 − (206)
40 − (306)
50 − (406)
567
346
63 + 7

128 + 6 = (1226) + 6 = (106) + 6 = 106 + 6 = 10
 
117 + 8 = (1116) + 8 = (106) + 8 = 4 + 8 = 12
 
125 + 8 = (1223) + 8 = (103) + 8 = 7 + 8 = 15
 
30 − (206) = (3020) + 6 = 10 + 6 = 16
 
40 − (306) = (4030) + 6 = 10 + 6 = 16
 
50 − (406) = (5040) + 6 = 10 + 6 = 16
 
567 = 5661 = 501 = 49
 
346 = 3442 = 302 = 28
 
63 + 7 = (60 + 3) + 7 = 60 + (3 + 7) = 60 + 10 = 70