September 2018 1 20 Report

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16.

a) 45*58+(-45)*58=

b)27*60+(-26)*60=

c)15*(-5)+(-4)*15=

d) [(-50)+(-49)+(-48)]*0=

17. c) (-10):5+(-2)*(-24)-48=

e) 144:(-4)-72:(-9)=

prosze o poprawne rozwiązanie . ; ) będzie naj ! ;*


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