Răspuns:
1. a) 76÷ 4 = 19
Proba: 19×4= 76
b) 46÷2 =23
Proba : 23×2= 46
c) 96÷ 8= 12
Proba: 12×8= 96
d) 84÷ 6= 14
Proba: 14×6= 84
e) 70÷ 5= 14
Proba: 14×5= 70
2. 88÷ 4= 22 , 44÷4= 11 , 60÷4= 15 , 92÷4= 23
3. 82- 48÷2÷4= 82-24÷4= 82- 6= 76
54÷3×2-32÷2= 18×2-32÷2= 36-32÷2= 36- 16 = 20
4. a×b×c = 96
a= 4
b = 4÷2 => b= 2
4×2×c= 96
8×c = 96
c= 96÷ 8 => c= 12
Sper ca te-am ajutat!