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a fost răspuns

calculați: 1000-120:{75+225:[34-75:5-7×(48-322:7)]}=

Răspuns :

=1000-120:{75+225:[34-75:5-7×(48-46)]}
=1000-120:{75+225:[34-75:5-7×2]}
=1000-120:{75+225:[34-15-14]}
=1000-120:[75+225:5]
=1000-120:(75+45)
=1000-120:120
=1000-1
=999