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a fost răspuns

{[(2×8×5-2×15)-25]:5+[5×20:10-4×5:2)]:5}×3=

Răspuns :

{[(16x5-30)-25]:5+[10-10)]:5}x3=
{[(80-30)-25]:5+0:5}x3=
[(50-25):5]x3=
25:5x3=
5x3=15
{[(16×5-30)-25]:5+[100:10-20:2]:5}×3 {[(80-30)-25]:5+[10-10]:5}×3 {[50-25]:5+0:5}×3 [25:5+0]×3 [5+0]×3 5×3=15

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