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5. Calculati: 98 + 4 x (3 x 4 + 2 x (7 x 8 + 9 x 4:6):10] -186-​

Răspuns :

98+4(12+2(56+6))-186=
98+4(12+124)-186=
98+4(136)-186=
98+544-186=
=456