Răspuns:
a1) 7*8+6*7-3+3=77
1) 7*8=56
2) 6*7=42
3)3*7=21
4) 56+42=98
5) 98-21=77
a2)9+5*6-25:5=34
1)5*6=30
2) 25:5=5
3) 9+30=39
4)39-5=34
a)7×3+6×7-3×7=
21+42-21=
63-21=42
9+5×6-25:5=
9+30-5=
39-5=34
b)7×6-12+7×10=
42-12+70=
30+70=100
15-15:3+2×5×5=
15-5+10×5=
15-5+50=
10+50=60
c)400+5×8+72:9-4=
400+40+8-4=
440+4=444
300-64:8+6×6-2=
300-8+37-2=
292+35=327
Sper ca te-am ajutat :) Coroana?
