Răspuns:
6×4+39=
=24+39=
=63
93-8×6=
=93-48=
=45
47+3×9=
=47+27=
=74
6 × 4 + 39 = 24+39= 63
93 - 8×6 = 93- 48 =45
47+3×9= 47+27 = 74