(e-406:2+29×4):3-108:9=132
(e -203+116):3-12=132/+
(e - 203+116):3=144 /×
( e - 203 +116)=432
e - 203=432-116
e-203=316
e=316+203
e=519
probă :
(519-203+116):3-12=
(316+116):3-12=
432:3-12=144-12=132
Deci , este corect.Am scris la proba direct rezultatele calculelor .