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72:8> >56:8
80:8> >64:8
48:8> >32:8

7 * <50< * 8
*7<60<8 *
8 * >70> * 7



Răspuns :

72:8>56:8

9>7

______________

80:8>64:8

10>8

_________________

48:8>32:8

6>4

____________________

7×2<50<9×8

4×7<60<8×8

8×9>70>6×7