Odpowiedź:
a)
[tex]0,3*0,2=\frac{3}{10} *\frac{2}{10} =\frac{6}{100} =0,06\\0,7*0,4=\frac{7}{10} *\frac{4}{10} =\frac{28}{100} =0,28\\0,6*0,9=\frac{6}{10} *\frac{9}{10} *=\frac{54}{100} =0,54[/tex]
b)
[tex]0,3*0,02=\frac{3}{10} *\frac{2}{100} =\frac{6}{1000} =0,006\\0,11*0,8=\frac{11}{100} *\frac{8}{10} =\frac{88}{1000} =0,088\\0,5*0,05=\frac{5}{10} *\frac{5}{100} =\frac{25}{1000} =0,025[/tex]
