Question

26•13-(18+16:2)•13=
800-5•[25•10-10•(48+48:8):6-54:9•4] =
repede dau coroană ​

Answer 1

Răspuns:

26•13-(18+16:2)•13=

= 26•13- (18+8)•13=

= 26•13 - 26•13=

= 13• (26-26)=

= 13•0

= 0

13 factor comun

800-5•[25•10-10•(48+48:8):6-54:9•4] =

= 800-5[250 - 10•(48+6):6-6•4]=

= 800-5(250-10•54:6-24)=

= 800 - 5(250-540:6-24)=

= 800 - 5(250-90-24)=

= 800 - 5(160-24)=

=800 - 5•136=

= 800 - 680=

= 120