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Rounding

Explore Rounding on MathWorld


Rounding is the approximation of a number by truncating and possibly adjusting the last digit of interest based on digits appearing after it.

Rounding is an elementary-school-level concept. It is listed in the California State Standards for Grade 3.


Classroom Articles on Pre-Algebra (Up to Elementary-School Level)

  • Associative
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  • Integer
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  • Cartesian Coordinates
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  • Line
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  • Commutative
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  • Power
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  • Decimal Expansion
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  • Prime Factor
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  • Distributive
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  • Prime Factorization
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  • Equal
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  • Prime Number
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  • Fraction
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  • Quotient
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  • Function Graph
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  • Right Angle
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