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(-2+5)*(-3)=
(-3 - 8)* (8 - 12)=
(4 - (-6))
_______ =
-2
(-13 - 8) : (-3 + 10)=
(-3) * (2 - 7) - (-6+2)=
(12 - 18) - (17 - (-3))
_________________ =
10 - 15
(Zeszyt ćwiczeń ''Liczby i wyrażenia algebraiczne'' str. 77 zad 16)
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(-2+5)*(-3)=
(-3 - 8)* (8 - 12)= 44
(4 - (-6)) 10
_______ =---------=-5
-2 -2
(-13 - 8) : (-3 + 10)=-21:7=-3
(-3) * (2 - 7) - (-6+2)=15+4=19
(12 - 18) - (17 - (-3)) -6-17-3 -26
_________________ = -------------=------------= 5,2
10 - 15 -5 -5