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Fraction Operations Lessons

Ordinal Numbers: Learn

When objects are placed in order, we use ordinal numbers to tell their position. Ordinal numbers are similar to the numbers that you learned before (they are called Cardinal numbers). If ten students ran a race, we would say that the student that ran the fastest was in first place, the next student was in second place, and so on.

Ordinals are also used to name fractions. For example, 2/3 is "two-thirds" which uses the regular name for the numerator and the ordinal name for the denominator.

The first ten ordinal numbers are:

  • First
  • Second
  • Third
  • Fourth
  • Fifth
  • Sixth
  • Seventh
  • Eighth
  • Ninth
  • Tenth

Ordinal Numbers: Practice

What is the ordinal name of the last object?

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