U izraz: 503⋅32+75⋅816−784−15+17⋅94, stavi zagrade tako da rješenje bude 15 488.
Prvi način:
503⋅32+75⋅(816−784)−(15+17)⋅94=
=503⋅32+75⋅32−32⋅94=
=16096+2400−3008=
=15488
Drugi način:
503⋅32+75⋅(816−784)−(15+17)⋅94=
=503⋅32+75⋅32−32⋅94=
=(503+75−94)⋅32=
=484⋅32=
=15488