
1. Fill in the blanks with > or < or =.
(i) 48792 _____ 48972
Ans: 48,792 < 48,972
(ii) 1248654 _____ 1246854
Ans: 12,48,654 > 12,46,854
(iii) 658794 _____ 658794
Ans: 6,58,794 = 6,58,794
2. Say True or False.
(i) The difference between the smallest number of seven digits and the largest number of six digits is 10.
Ans: False
(ii)The largest 4-digit number formed by the digits 8, 6, 0, 9 using each digit only once is 9086.
Ans: False
(iii) The total number of 4 digit numbers is 9000
Ans: True
3. Of the numbers 1386787215, 137698890, 86720560, which one is the largest? Which one is the smallest ?
Largest number = 1386787215
Smallest number = 86720560
4. Arrange the following numbers in the descending order:
128435, 10835, 21354, 6348, 25840
Ans: 128435 > 25840 > 21354 > 10835 > 6348
5. Write any eight digit number with 6 in ten lakhs place and 9 in ten thousandth place.
| Crore | Ten Lakhs | Lakhs | Ten Thousand |
| 0 | 6 | 0 | 9 |
| Thousand | Hundred | Ten | One |
| 0 | 0 | 0 | 0 |
6. Rajan writes a 3-digit number, using the digits 4, 7 and 9. What are the possible numbers he can write?
We can write two numbers, 479 and 497, using the number 4 in the hundreds place.
We can write two numbers, 794 and 749, using the number 7 in the hundredths place.
We can write two numbers, 947 and 974, using the number 9 in the hundreds place.
Rajan can write 6 numbers as 479, 497, 794, 749, 947, 974.
7. The password to access my ATM card includes the digits 9,4,6 and 8. It is the smallest 4 digit even number. Find the password of my ATM Card.
Given the digits 9, 4, 6, and 8, the smallest number obtained is 4689. This could be the even number 4698.
So my password is 4698
8. Postal Index Number consists of six digits. The first three digits are 6, 3, and 1. Make the largest and the smallest Postal Index Number by using the digits 0,3 and 6, each only once.
If the first three digits of the postal code are 6, 3, 1
- Largest postal code = 631603
- Smallest postal code = 631036
9. The heights (in metres) of the mountains in Tamil Nadu are as follows:
| Sl. No | Mountains | Height (in metres) |
| 1 | Doddabetta | 2637 |
| 2 | Mahendragiri | 1647 |
| 3 | Aanaimudi | 2695 |
| 4 | Velliangiri | 1778 |
(i) Which is the highest mountain listed above?
Ans: Aanaimudi
(ii) Order the mountains from the highest to the lowest.
Ans: Aanaimudi > Doddabetta > Velliangiri > Mahendragiri
2695 m > 2637 m > 1778 m > 1647 m
(iii) What is the difference between the heights of the mountains Aanaimudi and Mahendragiri?
Height of the mountain Anaimudi = 2695 m
Height of the mountain Mahendragiri = 1647 m
Difference between Anaimudi and Mahendragiri 2695 m – 1647 m = 1048 m
Ans: 1048 m
Objective Type Questions
10. Which list of numbers is in order from the smallest to the largest?
- 1468, 1486, 1484
- 2345, 2435, 2235
- 134205, 134208, 154203
- 383553, 383548, 383642
Ans: 134205, 134208, 154203
11. The Arabian Sea has an area of 1491000 square miles. This area lies between which two numbers?
- 1489000 மற்றும் 1492540
- 1489000 மற்றும் 1490540
- 1490000 மற்றும் 1490100
- 1480000 மற்றும் 1490000
Ans: 1489000 மற்றும் 1490540
12. The chart below shows the number of newspapers sold as per Indian Readership Survey in 2018. Which could be the missing number in the table?
| Name of the Newspaper | Ranking | Sold (in Lakh) |
| A | 1 | 70 |
| B | 2 | 50 |
| C | 3 | ? |
| D | 4 | 10 |
- 8
- 52
- 77
- 26
Ans: 26