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Whole Numbers and Ordinal Numbers: Introduction

In the unit Whole Numbers and Cardinal Numbers, we learned about numbers - whole numbers - from zero to one million: what these numbers are and how to write them. We learned that we write a whole number that tells us how many of something that we have, the number is called a cardinal number.

In this unit Whole Numbers and Ordinal Numbers, we learn how to write numbers when they are used to describe an order, such as rank or position. An example is to say that something is third from the right. Numbers when written that describe an order are called ordinal numbers.

Whole Numbers and Ordinal Numbers: 0 to 9

0th zeroth

As we saw in the unit Whole Numbers and Cardinal Numbers, zero is nothing.

1st first

   RosyBrown Box

2nd second

   DarkKhaki Box   MediumTurquoise Box

3rd third

   MediumSeaGreen Box   Wheat Box   Turquoise Box

4th fourth

   DarkViolet Box   SaddleBrown Box   DarkTurquoise Box   Coral Box

5th fifth

   Navy Box   DarkBlue Box   Blue Box   Plum Box   Tan Box

6th sixth

   CadetBlue Box   DarkSeaGreen Box   DarkGreen Box   MediumSlateBlue Box   Aqua Box   Violet Box

7th seventh

   SkyBlue Box   BurlyWood Box   SandyBrown Box   DarkSlateBlue Box   OliveDrab Box   MidnightBlue Box   Empty Box

8th eighth

   DarkCyan Box   CornflowerBlue Box   LimeGreen Box   YellowGreen Box   Gold Box   Aquamarine Box   Olive Box   Purple Box

9th ninth

   DarkGoldenrod Box   Pink Box   Fuchsia Box   Green Box   Lavender Box   Teal Box   SeaGreen Box   Yellow Box   Brown Box

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