round down

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Definition
  1. Verb (transitive):
    • To decrease a number to the nearest whole number or specified place value: The action of adjusting a numerical value downward to the closest, typically lower, round figure (e.g., nearest ten, hundred, or integer). It is a specific type of rounding.
Usage
  • This verb is used in mathematical, financial, and statistical contexts to simplify figures by reducing their precision.
  • It is often followed by the preposition "to" to specify the target place value (e.g., ).
  • The phrasal verb is inseparable; the object (the number being rounded) comes after "down."
Examples
  • Verb:
    • The cashier will round down the total to the nearest dollar.
    • Please round down 15.78 to the nearest tenth, giving 15.7.
    • The software is programmed to round down all fractional values to integers.
Advanced Usage
  • In Programming/Excel: The function is commonly used.
    • Use =ROUNDDOWN(23.456, 2) in Excel to get 23.45.
  • Contextual Implication: Rounding down can intentionally create a conservative estimate.
    • To be safe, we rounded down our projected costs.
Variants and Related Words
  • Round (verb): The general action of adjusting a number to a nearby approximate value.
  • Round off (verb): Often means to round to the nearest whole number or specified digit, which can be up or down depending on the standard rules.
  • Round up (verb): The opposite action; to increase a number to the nearest specified higher value.
  • Truncate (verb): In mathematics and computing, to cut off digits without rounding; for positive numbers, this is equivalent to rounding down.
Synonyms
  • Decrease to the nearest...
  • Floor (verb, in mathematics/computing): Specifically means to round down to the greatest integer less than or equal to a number.
Related Phrasal Verbs
  • Round off: To finish or complete something neatly; in mathematics, to round a number.
    • Let's round off the meeting with a summary.
    • Round off your answer to two decimal places.
  • Round up: To gather people or things together; in mathematics, to increase a number to the nearest higher specified value.
    • The sheriff rounded up the suspects.
    • Round up 4.2 to 5.
Related Idioms
  • Round numbers: Refers to numbers that end in one or more zeros, often used as approximations.
    • Just give me a round number estimate.
  • In round figures: Expressed as an approximate number.
    • The population, in round figures, is about 50,000.
Verb
  1. express as a round number
    • round off the amount

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