Răspuns :
a+b= 43 ...descompunem nr 43 in zeci si unitati
Z 40 si U 3
Z le defalcam in doua : a = 20 iar b = 20
U ...o defalcam in : a = 2 iar b= 1
Deci : a = 22
b = 21
a+b=43
Z 40 si U 3
Z le defalcam in doua : a = 20 iar b = 20
U ...o defalcam in : a = 2 iar b= 1
Deci : a = 22
b = 21
a+b=43