45 million tons = 4.08233133 × 1013 grams
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450 milligrams = 0.45 grams.
There are 1000 grams in a kilogram, and 100 centigrams in a gram. So, 450 kilograms * (1000 grams / kilogram) * (100 centigrams / gram) = 45,000,000 centigrams. So, 45 million centigrams in 450 kilograms.
450 grams.
i think that there are 450,000 grams
0.45 kilograms 1 kg = 1000 grams = 450 grams * 1 kg/1000 grams = 0.45 kg