8000 mm. 0.3 m = 300 mm, 2.3 m = 2300 mm, 4.3 m = 4300 mm, 9 m = 9000 mm. 0.4 m = 400 mm, 2.4 m = 2400 mm, 4.4 m = 4400 mm, 10 m = 10000 mm. 0.5 m
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