C Curriculum Explorer
Mathematics·Number Representation & Place Value·procedural

Reading and writing numbers (age 9+)

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

Suggested ages 9–10

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Learning journey

Your child is working with larger numbers up to 1 million — understanding place value, rounding to different levels of accuracy, and beginning to work with negative numbers in everyday contexts.

Evidence of understanding

  • 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 Reading and writing numbers (age 9+) read and write numbers into the millions — like 1,340,000 — and put a set of large numbers in order correctly?

Standards alignment

No external standards are linked to this topic.