Răspuns:
1.
a)2015+489=2504
b)2016-349=1667
c)806×45=36270
d)17028:9=1892
2. sunt 2 dar daca îl pui si pe cel intreg sunt 3
3.
a)A
b)F
c)F
d)F
4.
2×[39:(16-12:4)+(9+6:2)×7]=
2×[39:(16-3)+(9+6:2)×7]=
2×[39:13+(9+6:2)×7]=
2×[39:13+(9+3)×7]=
2×[39:13+11×7]=
2×[3+11×7]=
2×[3+77]=
2×80=
160
5.
a) x=439×2
x=878
b) 3/8
c)3/4
6.Nu am reusit sa îl fac,dar cred ca ca Ion a rezolvat 35 probleme si Stefan 37 s-au au facut 36 fiecare nu sunt sigura.
Sper ca te-am ajutat!!
