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MathGrade 3Place Value

Knowledge atom

Round a whole number to the nearest ten

G3.NBT.01Grade 3Place ValueSource mission: Round & Estimate Whole Numbers

Rounds a two- or three-digit number to the nearest ten using place-value reasoning, including the halfway case.

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Standards alignment

3.NBT.A.1

Prerequisites

Common misconceptions

  • rounds down whenever the digit is 5, or rounds by chopping the ones digit

Required evidence

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Show the steps

Rounds a two- or three-digit number to the nearest ten using place-value reasoning, including the halfway case.

Estimated time: ~5 min

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