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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

   Empty Box

2nd second

   CadetBlue Box   SlateBlue Box

3rd third

   Magenta Box   DeepPink Box   Coral Box

4th fourth

   HotPink Box   Indigo Box   YellowGreen Box   Goldenrod Box

5th fifth

   Lavender Box   Khaki Box   Aqua Box   MediumOrchid Box   MediumAquamarine Box

6th sixth

   GreenYellow Box   MediumPurple Box   Teal Box   DeepSkyBlue Box   Fuchsia Box   PowderBlue Box

7th seventh

   Green Box   Yellow Box   DarkOrchid Box   SandyBrown Box   Violet Box   MediumSpringGreen Box   DarkTurquoise Box

8th eighth

   DarkViolet Box   DarkOrange Box   MediumSlateBlue Box   Olive Box   DarkSeaGreen Box   Tan Box   MediumVioletRed Box   SaddleBrown Box

9th ninth

   RosyBrown Box   SpringGreen Box   DarkMagenta Box   Orchid Box   MediumTurquoise Box   DarkCyan Box   BlueViolet Box   ForestGreen Box   SkyBlue Box

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