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1. You look at the number you want to simplify

2. take the next number in order to find out how you round the number

1-4 the number stays the same, 5+ round up

example: 4.5357425353

- If you want to round to the nearest hundredth,

the hundredth is 3. So go to the next number, 5. Because the number is 5, you round up so the number becomes 4.54

- To round to the nearest ten-thousandths, you look at the ten-thousandths number, 7. Go to the next number, 4. Because the next number is 4, the number stays the same: 4.53574.

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Q: How do you simplify a decimal number?
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