hasil dari 4,5km-980m+8.500dm?..dam tolong di jwb ya pakai cara

4, 5 km - 980 m + 8500 dm = ..... dam
= 4, 5 km = 4, 5×100 = 450 dam
= 980 m = 980 : 10 = 98 dam
= 8500 dm = 8500 : 100 = 85 dam

= 450 dam - 98 dam + 85 dam
= 437 dam
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Semoga membantu ya....