Răspuns :

Răspuns:

8:2×3:4+1×0= 0

5×5-4×5+45=50

81:9×4-16:2+5×3= 59

4×6+5×3-1×8+9×7-4×4+3×0= 0

8:2•3:4+1=0
5•5-4•5+45=50
81:9•4-16:2+5•3=59
4•6+5•3-1•8+9•7-4•4+2•0=0