Răspuns :
x+236=342
x=342-236
x=106 ii numarul, dar 107 ii corect
x+136=580
x=580-136
x= 444 dar 445 ii corect
x=342-236
x=106 ii numarul, dar 107 ii corect
x+136=580
x=580-136
x= 444 dar 445 ii corect