1. Sub. :- Mathematics Std. :- 5th Numbers 72,48,123 Chapter no. 1
8,25,132
72,48,123
Numbers

2. The numerals in the Devanagari script are 1,2,3, and so on.
The numbers we use for counting objects are called counting numbers. These numbers have names like one, two.. And so on. In english they are wriitten using numers such as 1,2,3,…… These numbers are known as International numbers.
The numerals in the Devanagari script are 1,2,3, and so on.

3. Exercise:
Write the following using Devanagari Numerals
25,28,932; 27,30,005; 56,25,225; 89,12,265;

5. Exercise:1
Write the Numbers in words.
8,25,132; 77,50,125; 46,22,115; 12,18,155;
Exercise:2
Write the Numerals .
Seventy six thousand
seven lakh thirteen thousand six hundred and twelve
Eighty lakh fifteen thousand one hundred and twenty
One crore five lakh thirty thousand two hundred and fifty.

6. Place Value of digits
Look at the place value of every digit in 7,77,77,777.

7. Write the place value of the underlined digits.
Exercise:1
Write the place value of the underlined digits.
8,25,132
77,50,125
46,22,115
3,12,18,155

8. Expanded form of the number
Look at the number 13.71,976

9. A) Write the following numbers in their expanded form.
Exercise:3
A) Write the following numbers in their expanded form.
56,22,122
1,97,00,325
40,82,125
9,89,45,655

10. B) Write the number from its expanded form. 60,000+4,000+600+40+5
Exercise:3
B) Write the number from its expanded form.
60,000+4,
9,00,000+60,
2,00,00,000+60,00,000+55,

11. Comparison of the numbers
Of the given numbers, the number having more digits is greater and the number with fewer digits is smaller.
Ex. Compare the numbers 52,56,356 and 9,12,656.
52,56,356 consists of seven digits and 9,12,656. consists of six digits.
,56,356 > 9,12,656.

12. Comparison of the numbers
Of the number of digits in the given numbers is equal their extreme left digits are compared.
Ex. Compare the numbers 58,56,356 and 79,12,656.
58,56,356 and 79,12,656 consist of seven digits.
Their extreme left digits are 5 and 7 respectively.
5 < 7
,56,356 < 79,12,656.

13. Ex. Compare the numbers and write the proper sign, < or >, in the boxes.

14. Ascending and descending order of numbers
To write 3 or more numbers in ascending order , the smallest number is written first and the bigger ones are written thereafter in serial order.
To write 3 or more numbers in descending order , the biggest number is written first and the smaller ones are written there after in serial order.
Ascending order : 5,62,363; 5,87,911; 7,81,265
Descending order: 7,81,265 ; 5,87,911; 5,62,363

15. Forming the smallest and biggest number from given digits.
To write the smallest number
Write the smallest digit first and then write the numbers in ascending order.
If in the given numbers 0 (zero) number is given, first write the smallest number and then 0, and then write the numbers in ascending order.
The digits 3, 9, 8, 6 are given, smallest number is 3,689.
The digits 1, 4, 0, 5 are given, smallest number is 1,045.

16. To write the biggest number
Write the biggest digit first and then write the numbers in descending order.
The digits 3, 9, 8, 6 are given, biggest number is 9,863.
The digits 1, 4, 0, 5 are given, biggest number is 5,410.

17. To write the smallest & biggest number
If you have given 4 digits and required to write 5 digit smallest numbers
Write the smallest digit first twice and then write the numbers in ascending order.
If in the given numbers 0 (zero) number is given, first write the smallest number and then twice 0, and then write the numbers in ascending order.
The digits 3, 9, 8, 6 are given, smallest 5 digit number is 33,689.
The digits 1, 4, 0, 5 are given, smallest number is 10,045.

18. To write the biggest number
If you have given 4 digits and required to write 5 digit biggest numbers
Write the biggest digit first twice and then write the numbers in ascending order.
The digits 3, 9, 8, 6 are given, biggest 5 digit number is 99,863.
The digits 1, 4, 0, 5 are given, biggest 5 digit number is 55,410.

19. Ex. Write the smallest and biggest numbers using all the given digits in every number. Use each digit only ones.
5, 3, 6, 2
5, 9, 8, 7
Ex. From the digits 7, 3, 9, 2, 1 make the smallest and biggest six digit and seven digit numbers.