a) 342 dm2 = \(\frac{{342}}{{100}}\)m2 = 3,42 m2;
504 cm2= \(\frac{{504}}{{10000}}\)m2= 0,0504 m2
b) 80 m2 26 dm2 = \(80\frac{{26}}{{100}}\)m2 = 80,26m2;
7 m2 1 cm2 = \(7\frac{1}{{10000}}\)m2 = 7,0001 m2
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