b)5+(10:2*10)+(8*3-23)

Răspuns :

5+(10:2*10)+(8*3-23)=

5+(5*10)+(24-23)=

5+50+1=

55+1=

56
5+(10:2•10)+(8•3-23)=
=5+(5•10)+(24-23)
=5+50+1
=55+1
=56