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Truncation Flashcards
GCSE Mathematics (Edexcel) 1MA1
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Truncation
The process of shortening a number by removing digits beyond a certain point without rounding.
Difference between truncation and rounding
Truncation removes digits without rounding, while rounding adjusts the last retained digit based on the value of the next digit.
Truncating to 1 decimal place
Keep only the first digit after the decimal point and remove all others without rounding.
Truncating to 2 decimal places
Keep only the first two digits after the decimal point and remove all others without rounding.
Example of truncating 3.456 to 1 decimal place
The truncated value is 3.4.
Example of truncating 7.891 to 2 decimal places
The truncated value is 7.89.
Impact of truncation on accuracy
Truncation can lead to a loss of accuracy as digits are removed without considering their value.
Truncation in limits of accuracy
Truncation is used to determine the lower bound of a number when digits are removed.
Truncation in real-life contexts
Truncation is often used in measurements or calculations where only a certain level of precision is required.
Checking results after truncation
Always verify if truncation has affected the accuracy of your calculations, especially in problem-solving.
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