Răspuns :
Răspuns:
(83+89)-277=172-277=-105 ; B) 1475+8+30-1512=1 ; C) 12 x [25:(865-840)+64]-60=12 x ( 1+64)-60=780-60=720
Explicație pas cu pas:
a) (10•9968:8+89) - 1385:5=
(10•1246+89) - 1385:5=
(12460+89)- 1385:5=
12549-277= 12272
b)1475+72:9+(52:2+4) - 4• 378=
1475+ 72:9+ (26+4) - 4•378=
1475+72:9+30-4•378=
1475+8+30-1512=
1513-1512=1
c)12• [25:(173•5-24•35)+ 256:4]-60= 12• (25:25+64)= 12•65=780
Sper că te-am ajutat!
(10•1246+89) - 1385:5=
(12460+89)- 1385:5=
12549-277= 12272
b)1475+72:9+(52:2+4) - 4• 378=
1475+ 72:9+ (26+4) - 4•378=
1475+72:9+30-4•378=
1475+8+30-1512=
1513-1512=1
c)12• [25:(173•5-24•35)+ 256:4]-60= 12• (25:25+64)= 12•65=780
Sper că te-am ajutat!