October 2018 1 20 Report

Oblicz najprostrzym sposobem.

a) (-6,2)+1/7+6,2-1/7+5=

b) 0,25+1 1/2+7+(-3/2+(-1/4)+(-7)=

c) -[-(-2)]+(-3)-{-[-(-5 1/2)]}

/-To jest kreska ułamkowa

Prosze o pomoc-Daje naj


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