Question

efectuează: 9×(9968÷8+89)-1275÷5 ,1574+54÷9+(32÷2+4)-2×542. ,12×[25÷(35×25-34×25)+256÷4]-60​

Answer 1

Explicație pas cu pas:

9×(9 968:8+89)-1275:5=

9×(1 246+89)-1275:5=

9×1335-1275:5=

12 015-255=

11 760

1574+54:9+(32:2+4)-2×542=

1574+54:9+(16+4)-2×542=

1574+54:9+20-2×542=

1574+6+20-1 084=

1580+20-1084=

1600-1084=

516

12×[25:(35×25-34×25)+256:4]-60=

12×[25:(875-850)+256:4]-60=

12×(25:25+256:4)-60=

12×(1+64)-60=

12×65-60=

780-60=

720