Recuperació.4
- 3. (-6)·(-4):(-3)-7·(+3)=
- 6. (-2)·(-2)·(-2)·(-2)-(-3)·(-3)·(-3)=
- 7. (-3)·(+2)·(+2)+(-3)·(-3)·(-3)=
- 8. (-2)·(-2)·(-2)·(-2)·(-2)+(-3)·(-3)=
- 9. (-5)·(-5)+(+6)·(+6)-(-7)·(-7)=
- 10. (-2)·(-2)·(-2)+(-3)·(-3)·(-3)·(-3)=
- 16. -4+(-3)·(+5)-(-4):(-2)=
- 20. -6+(-3)·(-3)·(-3)·(-3)=
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