6th Maths : Term 1 Unit 1 : Numbers
Exercise 1.2
1. Fill in the blanks with > or < or =.
(i) 48792 _____ 48972
(ii) 1248654 _____ 1246854
(iii) 658794 _____ 658794
(ii) 1248654 _____ 1246854
(iii) 658794 _____ 658794
(i) 48792 < 48972
(ii) 1248654 > 1246854
(iii) 658794 = 658794
(ii) 1248654 > 1246854
(iii) 658794 = 658794
2. Say True or False.
(i) The difference between the smallest number of seven digits and the largest number of six digits is 10. [False]
(ii) The largest 4-digit number formed by the digits 8, 6, 0, 9 using each digit only once is 9086. [False]
(iii) The total number of 4 digit numbers is 9000. [True]
(ii) The largest 4-digit number formed by the digits 8, 6, 0, 9 using each digit only once is 9086. [False]
(iii) The total number of 4 digit numbers is 9000. [True]
3. Of the numbers 1386787215, 137698890, 86720560, which one is the largest? Which one is the smallest?
Solution:
Largest − 1386787215
Smallest − 86720560
Largest − 1386787215
Smallest − 86720560
4. Arrange the following numbers in the descending order: 128435, 10835, 21354, 6348, 25840
Solution:
Descending order: 128435, 25840, 21354, 10835, 6348
Descending order: 128435, 25840, 21354, 10835, 6348
5. Write any eight digit number with 6 in ten lakh place and 9 in ten thousand place.
Solution: 86798765
6. Rajan writes a 3-digit number, using the digits 4, 7 and 9. What are the possible numbers he can write?
Solution:
479, 497, 749, 794, 947, 974
479, 497, 749, 794, 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.
Solution: 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.
Solution:
Largest − 631630
Smallest − 631036
Largest − 631630
Smallest − 631036
9. The heights (in metres) of the mountains in Tamil Nadu are as follows:
(i) Which is the highest mountain listed above?
Anaimudi
(ii) Order the mountains from the highest to the lowest.
Anaimudi, Doddabetta, Velliangiri, Mahendragiri
(iii) What is the difference between the heights of the mountains Anaimudi and Mahendragiri?
(i) Which is the highest mountain listed above?Anaimudi
(ii) Order the mountains from the highest to the lowest.
Anaimudi, Doddabetta, Velliangiri, Mahendragiri
(iii) What is the difference between the heights of the mountains Anaimudi and Mahendragiri?
2695 − 1647 = 1048 metres
Objective Type Questions
10. Which list of numbers is in order from the smallest to the largest?
(a) 1468, 1486, 1484
(b) 2345, 2435, 2235
(c) 134205, 134208, 154203
(d) 383553, 383548, 383642
Answer: (c) 134205, 134208, 154203
11. The Arabian Sea has an area of 1491000 square miles. This area lies between which two numbers?
(a) 1489000 and 1492540
(b) 1489000 and 1490540
(c) 1490000 and 1490100
(d) 1480000 and 1490000
Answer: (a) 1489000 and 1492540
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?
(a) 8
(b) 52
(c) 77
(d) 26
(a) 8
(b) 52
(c) 77
(d) 26
Answer: (d) 26
Exercise 1.2 Quick Answers Recap:
1) (i) < (ii) > (iii) =2) (i) False (ii) False (iii) True
3) Largest: 1386787215; Smallest: 86720560
4) 128435 > 25840 > 21354 > 10835 > 6348
5) 76095321, 86593214 (Examples)
6) 479, 497, 749, 794, 947, 974
7) 4698
8) Smallest: 631036; Largest: 631603
9) (i) Anaimudi (ii) 2695 > 2637 > 1778 > 1647 (iii) 1048 m
10) (c)
11) (a)
12) (d)