Mathematics
Number Representation & Place Value
Procedural
9–10 yrs
Reading and writing numbers (age 9+)
数的读写（9岁以上）
Description
Read, write, order, and compare whole numbers up to at least 1,000,000 using base-ten numerals, number names, expanded form, and place-value understanding
Mastery Evidence
- Write 403,072 in words and in expanded form
- Compare 548,301 and 543,801 using < and explain the reasoning
- Order four six-digit numbers from smallest to largest
Assessment Prompt
Can your child read and write numbers into the millions — like 1,340,000 — and put a set of large numbers in order correctly?
