Mateamtyka: Zadanie 6 str. 92 Oblicz: a) (-51)+(-13)+(-19)+(-17)= b) (-14)+(-60)+(-7)= c) 7+(-12)+(-17)+(-7)+19= d) (-16)+(-10)+14+(-9)+(+20)= e) 20+(-18)+(-16)+(-40)= Prosze popdatylko wyniki prosze szybko
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