Class 5 Number System
Recap of Number System
In class IV, we learnt up to 6-digit numbers. The smallest 6-digit number is 100000, and it is read as One Lakh. In international system it is read as One hundred thousand.The largest 6-digit number is 999999, and it is read as Nine Lakh Ninety Nine Thousand Nine Hundred Ninety Nine. In international system it is read as Nine Hundred Ninety Nine Thousand Nine Hundred Ninety Nine.
Place Value of 7-Digit Number
Place value table is given below with some examples.
| Number | Ten-Lakh | Lakh | Ten-Thousands | Thousands | Hundreds | Tens | Ones |
|---|---|---|---|---|---|---|---|
| 1100251 | 1 | 1 | 0 | 0 | 2 | 5 | 1 |
| 2106972 | 2 | 1 | 0 | 6 | 9 | 7 | 2 |
| 4675231 | 4 | 6 | 7 | 5 | 2 | 3 | 1 |
| 9999999 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
1100251 Eleven Lakh Two Hundred Fifty One
2106972 Twenty One Lakh Six Thousand Nine Hundred Seventy Two
4675231 Forty Six Lakh Seventy Five Thousand Two Hundred Thirty One
9999999 Ninety Nine Lakh Ninety Nine Thousand Nine Hundred Ninety Nine,
It is the largest 7-digit number.
| Number | Millions | Hundred-Thousands | Ten-Thousands | Thousands | Hundreds | Tens | Ones |
|---|---|---|---|---|---|---|---|
| 1100251 | 1 | 1 | 0 | 0 | 2 | 5 | 1 |
| 2106972 | 2 | 1 | 0 | 6 | 9 | 7 | 2 |
| 4675231 | 4 | 6 | 7 | 5 | 2 | 3 | 1 |
| 9999999 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
1100251 One Million One Hundred Thousand Two Hundred Fifty One
2106972 Two Million One Hundred Six Thousand Nine Hundred Seventy Two
4675231 Four Million Six Hundred Seventy Five Thousand Two Hundred Thirty One
9999999 Nine Million Nine Hundred Ninety Nine Thousand Nine Hundred Ninety Nine
Place Value of 8-Digit Number
Place value table is given below with some examples.
| Number | Crores | Ten-Lakh | Lakh | Ten-Thousands | Thousands | Hundreds | Tens | Ones |
|---|---|---|---|---|---|---|---|---|
| 21597516 | 2 | 1 | 5 | 9 | 7 | 5 | 1 | 6 |
| 53706972 | 5 | 3 | 7 | 0 | 6 | 9 | 7 | 2 |
| 84675735 | 8 | 4 | 6 | 7 | 5 | 7 | 3 | 5 |
| 99999999 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
21597516 Two Crores Fifteen Lakh Ninety Seven Thousand Five Hundred Sixteen
53706972 Five Crores Thirty Seven Lakh Six Thousand Nine Hundred Seventy Two
84675735 Eight Crores Forty Six Lakh Seventy Five Thousand Seven Hundred Thirty Five
99999999 Nine Crores Ninety Nine Lakh Ninety Nine Thousand Nine Hundred Ninety Nine,
it is the largest 8-digit number.
| Number | Ten-Millions | Millions | Hundred-Thousands | Ten-Thousands | Thousands | Hundreds | Tens | Ones |
|---|---|---|---|---|---|---|---|---|
| 21597516 | 2 | 1 | 5 | 9 | 7 | 5 | 1 | 6 |
| 53706972 | 5 | 3 | 7 | 0 | 6 | 9 | 7 | 2 |
| 84675735 | 8 | 4 | 6 | 7 | 5 | 7 | 3 | 5 |
| 99999999 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
21597516 Twenty One Million Five Hundred Ninety Seven Thousand Five Hundred Sixteen
53706972 Fifty Three Million Seven Hundred Six Thousand Nine Hundred Seventy Two
84675735 Eighty Four Million Six Hundred Seventy Five Thousand Seven Hundred Thirty Five
99999999 Ninety Nine Million Nine Hundred Ninety Nine Thousand Nine Hundred Ninety Nine
Place Value of 9-Digit Number
Place value table is given below with some examples.
321597516 Thirty Two Crore Fifteen Lakh Ninety Seven Thousand Five Hundred and Sixteen
553706972 Fifty Five Crore Thirty Seven Lakh Six Thousand Nine Hundred and Seventy Two
784675735 Seventy Eight Crore Forty Six Lakh Seventy Five Thousand Seven Hundred and Thirty Five
999999999 Ninety Nine Crore Ninety Nine Lakh Ninety Nine Thousand Nine Hundred Ninety Nine,
it is the largest 9-digit number.
| Number | Ten-Crores | Crores | Ten-Lakh | Lakh | Ten-Thousands | Thousands | Hundreds | Tens | Ones |
|---|---|---|---|---|---|---|---|---|---|
| 321597516 | 3 | 2 | 1 | 5 | 9 | 7 | 5 | 1 | 6 |
| 553706972 | 5 | 5 | 3 | 7 | 0 | 6 | 9 | 7 | 2 |
| 784675735 | 7 | 8 | 4 | 6 | 7 | 5 | 7 | 3 | 5 |
| 99999999 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
321597516 Thirty Two Crore Fifteen Lakh Ninety Seven Thousand Five Hundred and Sixteen
553706972 Fifty Five Crore Thirty Seven Lakh Six Thousand Nine Hundred and Seventy Two
784675735 Seventy Eight Crore Forty Six Lakh Seventy Five Thousand Seven Hundred and Thirty Five
999999999 Ninety Nine Crore Ninety Nine Lakh Ninety Nine Thousand Nine Hundred Ninety Nine,
it is the largest 9-digit number.
Comparison of Large Numbers
To compare the large numbers, we follow the same rules that we follow in case of small numbers.
1. A number containing more digits is always greater than the number containing less digits.
2. If two numbers contain the same number of digits, we compare them by the leftmost digits, if they are same,
we compare them by next digits from left and so on.
Let s have a look at some examples.
Example 1. Compare 2487321 and 783453.
Solution. 2487321 is having 7 digits and 783453 is having 6 digits. So, 2487321 is greater than 783453.
Example 2. Compare 78673245 and 78766789.
Solution. 78673245 and 78766789 both are having 8 digits. So, from the number of digits we can not conclude that
which number is greater. Left most two digits of both the numbers are 78, that means we can not conclude which
number is greater. Comparing the next digits of both the numbers i.e. 7 > 6, so 78766789 is greater than 78673245.
Number System Test
Number System Test - 1 Number System Test - 2Class-5 Number System Worksheet
Answer Sheet
Number-System-AnswerDownload the pdf
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