URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ex 3 si 4

URGENT Ex 3 Si 4 class=

Răspuns :

3. a. (a+b) +12= 48+12= 60
b. (a+7) +( b+5)= (a+b) +(7+5) = 48+12= 60

4. a. 13+32+2= 47
b. 57+131+2= 190
c. 3867+ 351+2= 4220