Well, isn't that a happy little question! 850 is closest to 1000 because it's only 150 away. Just imagine a beautiful landscape with 850 trees, and you're almost at 1000 trees - you're almost there, just a few more steps to go!
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850 m / 1 km = 850 m / 1000 m = 850/1000 = 17/20
854 is 4 away from 850 and 6 away from 860. So rounded to the nearest tens, 854 is 850.
Well, darling, 850 to the nearest 1000 is still 1000. It's like saying you're almost a millionaire when you've only got a thousand bucks in your bank account. Close, but not quite there yet. Keep reaching for the stars!
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There are 1000 millimetres in one metre. Therefore, 850 millimetres is equal to 850/1000 = 0.85 metres.
There are 1000 millimetres in one metre. Therefore, 850 millimetres is equal to 850/1000 = 0.85 metres.