Place Value

Austen Meek, 2014年11月1日


  • 1. nlhukhlTwo-digit whole numbers
  • 2. Three-digit whole numbers
  • 3. Place Value: Addition
  • 4. Place Value: Subtraction
  • 5. Addition In Bases Between 2 and 10
  • 6. Subtraction Bases 2 through 10
  • 7. Numbers to Words (hundreds)
  • 8. Number To Words
  • 9. Words to Numbers
  • 10. Rounding Whole Numbers
  • 11. Place Value
  • 12. 2-digit Counting Bases 2-10
  • 13. 3 digit Counting Bases 2-10
  • 14. Counting On The Number Line

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nlhukhlTwo-digit whole numbers

Visualizing the meaning of two-digit numbers.
(Try moving the black slider.)
– Roy Wright

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