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4×4:8×[30+(64:8:2-1)]-10 dau coroana

Răspuns :

4x4:8x[30+(64:8:2-1)]-10=
16:8x[30+(8:2-1)]-10=
2x[30+(4-1)]-10=
2x(30+3)-10=
2x33-10=
66-10=56