Round to useful accuracy
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Log in to continueChoose a suitable decimal accuracy and use estimates to check computations.
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Round 1.367 to the nearest whole number. Use ordinary half-up rounding.
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Answer: 1
- The rounding unit is 1.
- Look one place to the right of the place being kept: 5 or more rounds up, otherwise keep it.
- The rounded value is 1.
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Curriculum reference
Victorian Curriculum F–10 Version 2.0
Pi Leo practice scope
Choose a suitable decimal accuracy and use estimates to check computations.
Read the official VCAA curriculum description (VC2M7N04)
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Activities to practise beyond the quiz
- Supported by the guided activity; selecting an MCQ does not demonstrate this action.
- VC2M7N04-C01Identify the place to keep, then inspect the next digit. Under the half-up convention used here, 5 or more rounds up. Carrying can change a whole-number digit, so check the complete result.
- VC2M7N04-C02A money amount rounded to cents and a count of whole paint tins have different rules. Enough tins requires rounding up. Round a shared cost at the specified stage and distinguish rounding change from an instrument’s measurement error.
- VC2M7N04-C03A rounded value represents an interval, with endpoints determined by the tie rule. Coarse rounding can hide a limit violation. Rounding an intermediate value can change a later answer; use the original number when direct rounding is requested.
- VC2M7N04-C04Selecting context-appropriate rounding accuracy and explaining computational reasonableness.
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Subskills
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Descriptor-derived subskills
- D01Round to the stated placeIdentify the place to keep, then inspect the next digit. Under the half-up convention used here, 5 or more rounds up. Carrying can change a whole-number digit, so check the complete result.
- D02Choose accuracy for the contextA money amount rounded to cents and a count of whole paint tins have different rules. Enough tins requires rounding up. Round a shared cost at the specified stage and distinguish rounding change from an instrument’s measurement error.
- D03Check boundaries and double roundingA rounded value represents an interval, with endpoints determined by the tie rule. Coarse rounding can hide a limit violation. Rounding an intermediate value can change a later answer; use the original number when direct rounding is requested.