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832:8+[40+8×(100:5-72:4)]×10





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Răspuns :

832:8+[40+8×(100:5-72:4)]×10
832:8+[40+8X(20-18)]X10
832:8+(40+8X2)X10
832:8+(40+16)X10
832:8+56X10
832:8+560
104+560
664

832:8+[40+8×(20-18)]×10
=832:8+(40+8×2)×10
=832:8+(40+16)×10
=832:8+56×10
=104+560
=664