November 2018 2 23 Report
Oblicz
1 i dwie trzecie : (5,5 X 2 i dwie jedenaste - 3 i dwie trzeci
oblicz w jak najprotstrzy sposób
a)2/3 x 4/5 + 2/3 x 2/5 + 2/3 x 0,6
b)1/2 x 6/7 - 0,5 x 3/7 - 2/7 x 2/4
c)1/4 x 2 i 2/3 - 1 i 1/6 x 1/4 + 1/2 x 0,25
d)0,3 x 3 i 3/8 - 2,25 x 3/10 + 6/20 x 8 i 7/8
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