Răspuns:
a) {[(45•5+175)•2-300]•15-75•4}•4-6795
{[(225+175)•2-300]•15-75•4}•4-6795
{[400•2-300]•15-75•4}•4-6795
{[800-300]•15-75•4}•4-6795
{500•15-75•4}•4-6795
{7500-300}•4-6795
7200•4-6795
28.800-6795=22005
b)5•{25•8-[221-(56•4-213)•11]•2}+597
5•{25•8-[221-(224-213)•11}•2}+597
5•{25•8-[221-11•11}•2}+597
5•{25•8-[221-121}•2}+597
5•{25•8-100•2}+597
5•{200-200}+597
5•0+597=
0+597=597