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