Round to the Nearest Hundred
Locate the lower and upper hundreds, compare distances, and choose the nearer.
About 15 minutes, plus any extended practice
Supplied materials
- Paper and a pencil; drawing and spoken explanations are welcome. An adult may read directions and options aloud.
- Supplied worked-case record: Round 682 to the nearest hundred.
- All quantities and shape descriptions are supplied in the worked example and questions; no purchase or personal information is needed.
Learn the idea
Hundred rounding compares neighboring multiples of one hundred. The midpoint is fifty past the lower hundred. Find the requested place before rounding: rounding to hundreds can differ from rounding to tens. Keep the original number when an exact answer is required.
Locate the lower and upper hundreds, compare distances, and choose the nearer. Use the stated higher-hundred rule when exactly halfway. Check that the answer is a multiple of one hundred.
Read which place the prompt requests. An answer to hundred rounding must be a full multiple of one hundred. Draw the lower hundred, its midpoint, and the upper hundred.
- Draw the lower hundred, its midpoint, and the upper hundred.
- Follow the worked example. Point to each number or shape feature and say what it tells you.
- Locate the lower and upper hundreds, compare distances, and choose the nearer.
- Try the question and then the three practice questions. Check your answers and explain any change you make.
See the method in action
Round 682 to the nearest hundred. Its neighbors are 600 and 700; distances are eighty-two and eighteen. It rounds to 700. Rounding to a ten would instead give 680, so the requested place matters. Read which place the prompt requests. An answer to hundred rounding must be a full multiple of one hundred. Draw the lower hundred, its midpoint, and the upper hundred.
Check your reasoning
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Helpful tips
- Read which place the prompt requests.
- An answer to hundred rounding must be a full multiple of one hundred.
See the answer and explanation
300
Compare neighboring hundreds; fifty is the midpoint. The result is 300.
Take it further
Round 549 and 550 to hundreds. Expected: 500 and 600.
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More practice: try new cases
Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.
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