The Power of Place Value · Number and Algebra

Expanding and Renaming Numbers

Investigating how four digit numbers can be represented in multiple ways using non standard partitioning.

Key Questions

  1. 1How does the position of a digit change its value by a factor of ten?
  2. 2Why might you choose to partition 1,200 as 12 hundreds instead of 1 thousand and 2 hundreds?
  3. 3What happens to the value of a number when we place a zero as a placeholder in different positions?

ACARA Content Descriptions

AC9M3N01
Year: Year 3
Subject: Mathematics
Unit: The Power of Place Value
Period: Number and Algebra

Suggested Methodologies

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