Error Estimation, Rounding

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When you round a number, there is always a small difference, or error, between the rounded number and the actual number.

For example, if you have the number 3.67 and you round it to 3.7, the error is 0.07.

Error estimating is a way to find out how much the rounded number is different from the actual number.

For example, if you're using a ruler to measure the length of a piece of wood, and the ruler only goes up to the nearest centimeter, you'll need to estimate the error. If the ruler says the wood is 20 centimeters long, but the actual length is 20.6 centimeters, the error is 0.6 centimeters.

Knowing the error can help you get a better understanding of how accurate your measurements are. It's important to keep in mind that the error can be positive or negative, meaning the rounded number can be either bigger or smaller than the actual number.

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