The document provides examples of writing and comparing numbers up to 100,000. It explains how to identify the place value of each digit in a number. Examples are given of arranging numbers in ascending and descending order and using digits to form the greatest and smallest 5-digit numbers. The document also demonstrates counting up or down in sequences by specific amounts. Finally, it shows examples of completing number patterns by identifying the rule.

1. Number up to 100.000
Ten-
Thousands Hundreds Tens Ones
thousands
1 2 5 7 4
I say : Twelve thousand, five hundred
and seventy four
I write : 12.574

2. Number up to 100.000
Ten-
Thousands Hundreds Tens Ones
thousands
2 5 4 0 9
I say : Twenty-five thousand, four
hundred and nine
I write : 25.409

3. Number up to 100.000
Ten-
Thousands Hundreds Tens Ones
thousands
3 1 0 2 7
I say : Thirty-one thousand and twenty
seven
I write : 31.027

4. In 32.145
The digit 3 stands for 3 ten thousands
and has a value of 30.000
The digit 2 stands for 2 thousands
and has a value of 2.000
The digit 1 stands for 1 hundreds
and has a value of 100
The digit 4 stands for 4 tens
and has a value of 40
The digit 5 stands for 5 ones
and has a value of 5

5. In 29.306
The digit 3 stands for 3 hundreds
and has a value of 300
The digit 0 stands for 0 tens
and has a value of 0
The digit 6 stands for 6 ones
and has a value of 6

6. Compare number up to 100.000
34.506
< 44.506
3 ten thousands is smaller than 4 ten thousands
Therefore, 34.506 is smaller than 44.506
This means 44.506 is greater than 34.506

7. Compare number up to 100.000
23.646
> 23.546
Ten thousands and thousands have the same digit
6 hundreds is greater than 5 hundreds
Therefore, 23.646 is greater than 23.546
This means 23.546 is smaller than 23.646

8. For Remember !
We always start comparing the ten thousands,
then the thousands, the hundreds, followed by
the tens and finally the ones

9. 79.409 79.049 97.049
Arrange these numbers in ascending order!
The smallest The greatest
79.049 79.409 97.049

10. 23.233 23.323 23.332
Arrange these numbers in descending order!
The greatest The smallest
23.332 23.323 23.233

11. Use the following digits to form 5-digits number
2 1 5 6 8
The greatest number
86 . 521
The smallest number
1 2 . 568

12. Use the following digits to form 5-digits number
0 2 4 7 9
The greatest number
97. 420
The smallest number
20. 479

13. Do the following questions!
1. Write the numbers
a. Seventeen thousand, two hundred and sixty-
eight
b. Seventy thousand, nine hundred and eleven
c. Ninety-nine thousand and nine
2. Write these numbers in words
a. 25.515
b. 30.303
c. 88.018
3. Arrange these numbers in ascending order
a. 43.344 - 34.443 - 44.343
b. 56.566 - 56.665 - 56.656
4. Arrange these numbers in descending order
a. 77.447 - 74.774 - 47.774
b. 10.110 - 10.010 - 10.101

14. Count in sequence
Count up by 100 10.600
10.500
10.400
10.300
10.200
10.100
10.000

15. Count in sequence
28.000
Count up by 500
27.500
27.000
26.500
26.000
25.500
25.000

16. Count in sequence
Count up by 28.200
1.200 27.000
25.800
24.600
23.400
22.200
21.000

17. Count in sequence
Count up by 40.000
2.500 37.500
35.000
32.500
30.000
27.500
25.000

18. Count in sequence
27.100
Count down
26.900 by 200
26.700
26.500
26.300
26.100
25.900

19. Count in sequence
47.100
Count down
46.100 by 1.000
45.100
44.100
43.100
42.100
41.100

20. Count in sequence
47.100
Count down
40.100 by 1.500
24.100
22.600
21.100
19.600
18.100

21. Complete Number Pattern
What is the rule ?
The rule is
+ 1.200
13.300 14.500 15.700 16.900 18.100

22. Complete Number Pattern
The rule is
- 2.000
74.100 72.100 70.100 68.100 66.100

23. Complete Number Pattern
The rule is
x 2
111 222 444 888 1.776

24. Complete Number Pattern
The rule is
: 10
10.000 1.000 100 10 1

25. What are the missing numbers in these patterns?
?
3.000 7.000
2.500 500 ?

26. What are the missing numbers in these patterns?
?
150 500
3 50 ?