September 2018 1 10 Report

oblicz:

a) (-7)+6+(-2)+(-5)+16=.........

b) (-20)+(-60)+90+(-10)+30=.......

c) 8,5+(-2,4)+(-1,1)+4,2+(-7,6)=........

d) (-1 1/2)+(-2 2/3)+1 4/9+6 5/9+(-3 11/18)=.........

e) (-4,5)+(2 2/5)+7 1/2+(-1,7)+6 4/5=..........

kreske ułamkową zastąpiłem ukośnikami.


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