If you are asked to give an answer to three decimal places and you have an answer such as 0.987654 then you would take the first three numbers after the decimal so in this case it would be 987, however, you would need to round this up since you have a six after it. The general rule is that if the number following your cut off point is greater than 5 you round up one number and if it is less than 5 you leave it the same. Therefore, your answer would be 0.988
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4 decimals: 1.0033 3 decimals: 1.003 2 decimals: 1.00
there are 3 types of decimals. Terminating Non Terminating and Reoccuring
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To find the square root of 0.9 to 3 decimal places, you can use a calculator or a mathematical method such as the Newton-Raphson method. By using the Newton-Raphson method, you can iteratively approximate the square root of 0.9 to the desired precision. The square root of 0.9 is approximately 0.948 to 3 decimal places.