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260-4×8×5-2×3×2×2+4×8-6×8-2×9+7×7+5×3×4=

Răspuns :

260-160-24+32-48-18+49+60=151
260-160-24+32-48-18+49+60=
= 100-24+32-48-18+49+60=
= 76+32-48-18+49+60=
= 108-48-18+49+60=
= 60-18+49+60=
= 42+49+60=
= 91+60
= 151