Răspuns :
207×28+207×180-208×206=
207×(28+180)-208×206=
207×208-208×206=
208×(207-206)=
208×1=
208
207×(28+180)-208×206=
207×208-208×206=
208×(207-206)=
208×1=
208
207×28+207×180-208×206 =
207x( 28 + 180) - 208 x 206 =
207 x 208 - 208 x 206 =
208 x( 207 - 206) =
208 x 1 =
208
207x( 28 + 180) - 208 x 206 =
207 x 208 - 208 x 206 =
208 x( 207 - 206) =
208 x 1 =
208