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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

   Orchid Box

2nd second

   DarkOrange Box   DarkSlateBlue Box

3rd third

   DarkGoldenrod Box   MediumSpringGreen Box   OliveDrab Box

4th fourth

   HotPink Box   YellowGreen Box   GreenYellow Box   DeepSkyBlue Box

5th fifth

   SkyBlue Box   Aquamarine Box   Brown Box   SaddleBrown Box   SpringGreen Box

6th sixth

   MediumBlue Box   RoyalBlue Box   Chocolate Box   MediumOrchid Box   Sienna Box   DarkCyan Box

7th seventh

   MidnightBlue Box   Teal Box   Green Box   BurlyWood Box   Empty Box   Plum Box   Yellow Box

8th eighth

   Fuchsia Box   MediumSeaGreen Box   ForestGreen Box   Purple Box   Cyan Box   PowderBlue Box   Turquoise Box   Wheat Box

9th ninth

   Khaki Box   Thistle Box   Peru Box   DarkBlue Box   SeaGreen Box   SlateBlue Box   Blue Box   Aqua Box   MediumVioletRed Box

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