Răspuns :
Răspuns:
a) 10+9+8=27
b) 493+8-119=382
Explicație pas cu pas:
c) 2+50+30=82
d) 600-48+54-3=603
e) (90-42) :8+(21+7)= 48:8+28=6+28=34
1). 5×6:3+27:9×3+8=
30:3+3×3+8=
10+9+8=19+8=27
2). 493+18:9×4-(200-9×9)=
493+2×4-(200-81)=
493+8-119=
501-119=382
3). 2+(3×4:6×50-50)+(50:10×6:3+20)=
2+(12:6×50-50)+(5×6:3+20)=
2+(2×50-50)+(30:3+20)=
2+(100-50)+(10+20)=
2+50+30=
52+30=82
4). 600-48+48:8×9-50:5:10×3=
600-48+6×9-10:10×3=
600-48+54-1×3=
552+54-3=
606-3=603
5). ( 90-6×7 ) : 8 + ( 21 + 21 : 3 ) =
( 90-42 ) :8 + ( 21 + 7 ) =
48 : 8 + 28 =
6+28=34