round number
Ends in zeros
A round number is one that ends in zero or consists of convenient units, making it easy to work with: Let's call it a round fifty dollars.
Round numbers often result from rounding—approximating to the nearest ten, hundred, or other neat figure.
They feel cleaner and more memorable than precise figures, which is why prices are set at $9.99 rather than the round $10.
Ease of being recalled
- preferenceFavored choice among alternatives
- anchoringFastening securely to position
- heuristicPractical solving shortcut
- mental shortcutQuick cognitive approximation
Base of decimals
- hundredTen squared
- thousandTen times a hundred
- millionOne thousand thousands
- billionOne thousand million
fifty · twenty · five hundred · dozen · century · gross · score · crore
Near but inexact value
- ballparkSports venue or estimate
- guesstimateRough, intuitive calculation
- simplificationMaking something less complex
- shorthandAbbreviated writing system
mental math · placeholder · benchmark · rule of thumb · order of magnitude · back-of-envelope
Recurring memorial date
- birthdayAnnual date of origin
- jubileeSpecial anniversary observance
- centennialHundred-year anniversary
- bicentennial200th anniversary observance
sesquicentennial · commemorative · landmark · golden · silver · diamond · platinum
Bulk sales to merchants
- retailSales to end users
- list pricePublished retail cost
- sticker priceManufacturer's suggested retail amount
- price pointSet retail cost level
Unit of increase
- intervalDuration between two points
- calibrationAdjusting for measurement accuracy
- graduationCompleting academic requirements formally
- scaleMeasure of relative size
dial · gauge · odometer · speedometer · thermometer · dosage · portion · serving size
memorability
Ease of being recalled
- preferenceFavored choice among alternatives
- anchoringFastening securely to position
- heuristicPractical solving shortcut
ten
Base of decimals
billion · fifty · twenty · five hundred · dozen · century · gross · score · crore
approximation
Near but inexact value
- ballparkSports venue or estimate
- guesstimateRough, intuitive calculation
- simplificationMaking something less complex
shorthand · mental math · placeholder · benchmark · rule of thumb · order of magnitude · back-of-envelope
anniversary
Recurring memorial date
- birthdayAnnual date of origin
- jubileeSpecial anniversary observance
- centennialHundred-year anniversary
bicentennial · sesquicentennial · commemorative · landmark · golden · silver · diamond · platinum
wholesale
Bulk sales to merchants
- retailSales to end users
- list pricePublished retail cost
- sticker priceManufacturer's suggested retail amount
increment
Unit of increase
- intervalDuration between two points
- calibrationAdjusting for measurement accuracy
- graduationCompleting academic requirements formally
scale · dial · gauge · odometer · speedometer · thermometer · dosage · portion · serving size
- approximationsabout, approximately, roughly, almost, nearly
- math expressionsdo the math, add up, crunch numbers, number crunching, number cruncher
- Imprecisevague, fuzzy, rough, hazy, murky
- numbersone, two, four, three, 0
- estimatesestimate, estimation, ballpark, ballpark estimate, rough estimate
- number wordspair, duo, trio, quartet, quintet
round numberodd number
Integer not divisible by two
random number · decimal number · decimal · irrational number · prime number
round, around, surround, rounded, surrounded, surroundings, surrounding, rounding, roundness