Условие:

30 + (248)
40 − (306)
60 + (427)
353 + 8
6 + 247
2 + 868
801
9061
7061

30 + (248) = 30 + (2444) = 30 + (204) = 30 + 16 = 30 + 10 + 6 = 40 + 6 = 46
 
40 − (306) = (4030) + 6 = 10 + 6 = 16
 
60 + (427) = 60 + (4225) = 60 + (405) = 60 + 35 = 60 + 30 + 5 = 90 + 5 = 95
 
353 + 8 = (30 + 5) − 3 + 8 = 30 + (53) + 8 = 30 + 2 + 8 = 30 + 10 = 40
 
6 + 247 = (6 + 4) + 207 = 10 + 207 = 307 = 23
 
2 + 868 = (2 + 6) + 808 = 8 + 808 = 80 + (88) = 80 + 0 = 80
 
801 = (70 + 10) − 1 = 70 + (101) = 70 + 9 = 79
 
9061 = 90601 = 301 = 29
 
706170601 = 101 = 9