1.
[tex]1dam ^{2} = 100m^{2} \\ 1hm^{2} = 10.000 {m}^{2} \\ ........................... \\ 51da {m}^{2} = 51 \times 100 = 5100 {m}^{2} \\ 0.024hm^{2} = 0.024 \times 10.000 = 240 {m}^{2} \\ 5100 {m}^{2} + 240 {m}^{2} + 169 {m}^{2} - 150900m^{2} = \\ = - 145391 {m}^{2} [/tex]
2.
[tex]0.27hm^{2} + 25.36dam^{2} - 2630000cm^{2} = \\ 0.27hm^{2} = 0.27 \times 10000 = 2700 {m}^{2} \\ 25 . 63 dam ^{2} = 25.63 \times 100 = 2563 {m}^{2} \\ 1cm ^{2} = 0.0001 {m}^{2} \\ 2630000cm^{2} = 263000 \times 0.0001 = 236 {m}^{2} \\ 2700m^{2} + 2563 {m}^{2} - 263 {m}^{2} = 5737 {m}^{2} [/tex]
3.
[tex]30500dm^{2} + 0.7hm^{2} - 305 {m}^{2} = \\ 1d {m}^{2} = 0.01 {m}^{2} \\ 1h {m}^{2} = 10000 {m}^{2} \\ \\ 30500dm^{2} = 30500 \times 0.01 = 305 {m}^{2} \\ 0.7hm ^{2} = 0.7 \times 10000 = 7000 {m}^{2} \\ 305m^{2} + 7000 {m}^{2} - 305 {m}^{2} = 7000 {m}^{2} [/tex]
