Rounding

Round 52,845

A to the nearest 10 For the first thing I did was I look at the tens it was between 45 then I said five or over round up and four or below stays the same.The nearest ten was 52,950. How did I do it first I did I looked at the ten The I new that 5 or over round up 4 or below stays the same.

b the nearest 100  the first I did was I looked at the one hundred digit then I looked at which is closer it was five or over rounds up.i looked at the units then which is closer then the answer was 52,900

c to the nearest 1,000 I looked at the hundred digit then I looked at the one thousand digit.

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