To round 230 to the nearest hundred.
We note that '30' is only thirty places from '200'. but seventy places from '300'
Since ;30; < '70' , then 230 is nearer to '200' then '300'.
Another way.
We inspect the number in the 'tens' column which is '3'.
Id this number is less than '5' , then you are nearer to the lower hundred number. If it is ;5; or more , then you are nearer to the higher hundred number.
Since it is 3 > 5 then you are nearer to the lower hundred number. which is '200'.
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