The Power of Place: Large Numbers and Decimals · Number Sense

The Infinite Scale of Base Ten

Investigating how the value of a digit changes by a factor of ten as it moves between places.

Key Questions

  1. 1How does our number system remain consistent as we move from whole numbers into decimals?
  2. 2Why is the decimal point considered a fixed anchor in our place value system?
  3. 3What happens to the relationship between digits when we multiply or divide by powers of ten?

Ontario Curriculum Expectations

ON: Number - Grade 5
Grade: Grade 5
Subject: Mathematics
Unit: The Power of Place: Large Numbers and Decimals
Period: Number Sense

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