Question

[(9+4: 4–4): 2]+[11–9: (7–8: 2)]

Answer 1

Răspuns:

[(9+4: 4–4): 2]+[11–9: (7–8: 2)]=

[(9+1-4):2]+[11-9:(7-4)=

[(10-4):2+(11-9:3)=

6:2+11-3=

3+8=

11

Answer 2

Răspuns:

[(9+4:4-4):2]+[11-9:(7-8:2)]

[(9+1-4):2]+[11-9:(7-4)]

[(10-4):2]±(11-9:3)

(6:2)+(11-3)

3+8=11

sper ca e ok și ca te-am ajutat (-ω-；)