October 2018 1 18 Report

Oblicz sprytnie:

a) 15 - (-11) -15 -11

b)-10-7- (-7) - 18

c) - 5/9 + 2/3 + 5/9 - 5/6 - 2/3

d) - 2/7 + 3/8 - 1/2 + 2/7 - 1/4 1/2

e) 1,1 + 2,2 + 3,3 + 4,4 + 5,5 + 6,6

f)- 3,7 + 2,85 + 4,7 - 4,85

PLISSS NA JUTROO DAJĘ NAAAJJJJ


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