{ 12 + 3 x [ 20 – 2 x ( 7 – 10 : 5 ) ] + 13 } x 10 =
= { 12 + 3 x [20 – 2 x (7 - 2) ] + 13 } x 10 =
= [12 + 3 x (20 – 2 x 5) + 13 ] x 10 =
= [12 + 3 x (20 – 10) + 13] x 10 =
= (12 +3 x 10 + 13) x 10 =
= (12 + 30 + 13) x 10 = (42 + 13) x 10 =
= 55 x 10 = 550 Sper ca te-am ajutat!
3x{5+[7(28:7x3)-22:11+20064012:2)]}=
3x[5+(84-2+2006:2006)]=
3x(5+83)=
3x88=
264 FUNDA!
Si eu is in cl a5-a:
4x10+{[(8x4-12)+5x7]x4+10}x3=
=40+{[(32-12+35]x4+10}x3=
=40+ [(20+35)x4+10}x3=
=40+( 55x4+10)x3=
=40+(220+10)x3=
=40+230x3=
=40+690=730
HUH
2x{11-5x[3-(4-3)]}=
= 2x[11-5x(3-1)]=
= 2x(11-5x2)=
= 2x(11-10)=
= 2x1=
=2
Jeff4Ever4Me1Lov3You întreabă: