1. 2a+(a-b)-b=2*8+(8-5)-3=16+5-3=18
2. a=9, b=27, c=9+38=47 9+27+47+d=102 d=102-82 d=19
3. ma=8, i=40, mi=48 100-8-40-48=4 mere de cules
4. 105-10-20-46=75-46=29 pagini de citit
5. (8*6)+(7*9)=49+63=111 carti aduse
6. (6*8)+(8*9)+(5*7)=48+72+35=155 pomi in livada
7. 6+(3*6)=6+18=24 mingi in cele 2 cutii
8. 8+(2*8)+(5*8)=8+16+40=64 pasari
9.? caise are crina 7*3=21
? caise ii mai trebuie iuliei 21-7=14
10. var 1 (10*2)+(5*4)+(3*4)+(1*4)=20+20+12+4=56
var 2 (10*2)+4*(5+3+1)=20+4*9=20+36=56
11 29+5=34 varsta tatalui