October 2018 1 10 Report

oblicz jak najprostszym sposobem: a) 105+(-7)+(-13)+20= b)-16+67+(-10)+(-7)+66= c)2 i dwie piate+(4,1)+7 i trzy piate+(-5,9)= d)4 i cztery siodme +5,4+(-1 i cztery siodme)+(-7,4)= e)-0,75+6,3+(-1,1)+(- jedna czwarta)+(-6,3)= dziekuje za odpowiedzi prosze z wytlumaczeniem!!


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