位值问题解决
Place Value Problem-Solving
解决涉及位值的数的问题和实际问题，且正数的数值越来越大。
Solve number and practical problems involving place value with increasingly large positive numbers
学习证据 / Evidence
- 解决需要对1000以上的数进行四舍五入、比较或排序的问题。
- 在实际情境中运用位值知识（如人口数据、距离等）。
- 解释所用策略，并联系对位值的理解。
- Solve a problem requiring rounding, comparing, or ordering numbers beyond 1000
- Apply place-value knowledge in a practical context (e.g. population figures, distances)
- Explain the strategy used, referencing place-value understanding
评估问题 / Assessment
如果{{name}}被问到“用数字3、7、1和8能组成的最大的四位偶数是多少？”，他们能有条理地推算并给出答案吗？
If {{name}} is asked 'what is the largest 4-digit even number you can make from the digits 3, 7, 1, and 8?', can they work through it systematically and give you an answer?