Răspuns :
9 + 2² × (3² : 9 - 1) : 2³+100⁰=
=9 + 4 × (9 : 9 - 1) : 8 + 1=
=9 + 4 × (1 - 1) : 8 + 1=
=9 + 4 × 0 : 8 + 1=
=9 + 0 : 8 + 1=
=9 + 0 + 1=
=9 + 1=
=10
=9 + 4 × (9 : 9 - 1) : 8 + 1=
=9 + 4 × (1 - 1) : 8 + 1=
=9 + 4 × 0 : 8 + 1=
=9 + 0 : 8 + 1=
=9 + 0 + 1=
=9 + 1=
=10