Question

îmi trebuie urgent ex:3,4.La ex:3 doar punctele (c,d).La ex:4 doar punctele (a,b,d,e).
dau coroana

Answer 1

c)2x[90:2+(120:4-20)]x10=1100
2x[90:2+(30-20)]x10=
2x[90:2+10]x10=
2x[45+10]x10=
2x55x10=
110x10=1100
d)2007+18:[2+(16-108:27):3]=2010
   2007+18:[2+(16-4):3]=
   2007+18[2+12:3]=
   2007+18:6=2007+3=2010
4)3+3x[3+3:3x(3+3x3)]:15=6
3+3x[3+3:3x(3+9)]:15=
3+3x[3+3:3x12]:15=
3+3x[3+12]:15=
3+3x15:15=
3+45:15=
3+3=6
b)812-4x[6x(61-3600:12:30)]:9=672
812-4x[6x(61-300:30)]:9=
812-4x[6x(61-10)]:9=
812-4x[6x51]:9=
812-4x306:9=
812-1224:9=
812-136=672
d)90+7x[1614-12000:(18-10)]-16=872
  90+7x[1614-12000:8]-16=
90+7x[1614-1500]-16=
90+7x114-16=
90+798-16=
888-16=872
e)44+8x[280:(37-1480:20:37)]-7=101
44+8x[280:(37-74:37)]-7=
44+8x[280:(37-2)]-7
44+8x[280:35]-7=
44+8x8-7=
44+64-7=
108-7=101