Răspuns :
497+3x[170+2x(256-168)=
497+3x(170+2x88)=
497+3x(170+176)=
497+3x 346=
497+1038=
1535
497+3x(170+2x88)=
497+3x(170+176)=
497+3x 346=
497+1038=
1535
1988:4+3×[170+2×(64×4-672:4)] =
497+3×[170+2×(256-168)] =
497+3×(170+2×88) =
497+3×(170+176) =
497+3×346 =
497+1 038 =
1 535
497+3×[170+2×(256-168)] =
497+3×(170+2×88) =
497+3×(170+176) =
497+3×346 =
497+1 038 =
1 535