Lesson
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Numbers & Numeration |
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Ordinal number:
a number used to tell order or position.
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Ordinal
numbers |
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1st |
first |
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2nd |
second |
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25th |
twenty-fifth |
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50th |
fiftieth |
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100th |
one hundredth |
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500th |
five hundredth |
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Alphabet |
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1st |
2nd |
3rd |
4th |
5th |
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first |
second |
third |
fourth |
fifth |
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When you read a calendar, you use
ordinal numbers. |
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August |
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Sunday |
Monday |
Tuesday |
Wednesday |
Thursday |
Friday |
Saturday |
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1 |
2 |
3 |
| 4 |
5 |
6 |
7 |
8 |
9 |
10 |
| 11 |
12 |
13 |
14 |
15 |
16 |
17 |
| 18 |
19 |
20 |
21 |
22 |
23 |
24 |
| 25 |
26 |
27 |
28 |
29 |
30 |
31 |
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August is the
eighth month. |
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August
1st is on
Thursday. |
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Remember:
Ordinal numbers tell order or position.
- 4th grade
- 10th floor
- twenty-fifth anniversary
- hundredth birthday
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