Question

URGENT !

1. Calculati : 1-30:{1500:(14-9)-3x[8x16-2x(48-29)]} .

2. Aflati suma tuturor numerelor naturale de doua cifre care impartite la cinci , dau catul si restul egale .

3. Aflati suma tuturor numerelor naturale de doua cifre care sunt egale cu rasturnatele lor.

Answer 1

1.
1-30:{1500:(14-9)-3x[8x16-2x(48-29)]}=
=1-30:[1500:5-3x(128-2x19)=
=1-30:[300-3x(128-38)=
=1-30:(300-3x90)=
=1-30:(300-270)=
=1-30:3=1-10....E ceva gresit...poate era 1+ 10
Pe restul nu le stiu scz

Answer 2

1-30:[1500:5-3x(8x16-2x19)]=1-30:([300-3x(128-38)]=1-300:(300-3x90)=1-300:30=1-10=-9