Răspuns :
8+[8x(8-1)+8]x8-(8+103)=
8+(56+8)x8-111=8+64x8-111=8+512-111=520-111=409
8+[8×(8-8:8)+8]×8-(8+412:4)=
8+[8×(8-1)+8]×8-(8+103)=
8+(8×7+8)×8-111=
8+(56+8)×8-111=
8+64×8-111=
8+512-111=
520-111=409
8+[8x(8-1)+8]x8-(8+103)=
8+(56+8)x8-111=8+64x8-111=8+512-111=520-111=409
8+[8×(8-8:8)+8]×8-(8+412:4)=
8+[8×(8-1)+8]×8-(8+103)=
8+(8×7+8)×8-111=
8+(56+8)×8-111=
8+64×8-111=
8+512-111=
520-111=409