Question

4,5•{0,25•[30,18-(11,12+3,06)]}+2,5

Answer 1

4,5x{0,25x[30,18-(11,12+3,06)]}+2,5=
4,5x{0,25x[30,18-14,18]}+2,5=
4,5x{0,25x16}+2,5=
4,5x4+2,5=
18+2,5=
20,5.

Answer 2

=4,5x[0,25x(30,18-14,18)]+2,5
=4,5x(0,25x16)+2,5
=4,5x4+2,5
=18+2,5
=20,5
Sper sa fie bun