三位数中三个数字的含义
The three digits of a three-digit number
理解三位数中的三个数字分别表示几个百、几个十和几个一。
Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones
学习证据 / Evidence
- 说出三位数中每一位数字表示的值（例如在362中，3表示3个百）。
- 将一个三位数按百、十、个位进行拆分（例如485 = 400 + 80 + 5）。
- 解释为什么706有7个百、0个十和6个一。
- State the value of each digit in a three-digit number (e.g. in 362, the 3 represents 3 hundreds)
- Partition a three-digit number into hundreds, tens, and ones (e.g. 485 = 400 + 80 + 5)
- Explain why 706 has 7 hundreds, 0 tens, and 6 ones
评估问题 / Assessment
如果{{name}}看到数字348，能说出其中有3个百、4个十和8个一，而不是只把数字读成“三四八”吗？
If {{name}} sees the number 348, can they tell you there are 3 hundreds, 4 tens, and 8 ones — rather than just reading the digits as 'three four eight'?