## ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 1 Knowing Our Numbers Ex 1.2

Question 1.

Use the appropriate symbol < or > to fill in the blanks:

(i) 173 … 189

(ii) 1058 … 1074

(iii) 8315 … 8037

Solution:

Question 2.

In each of the following pairs of numbers, state which number is smaller:

(i) 553,503

(ii) 41338,1139

(iii) 25431,24531

Solution:

Question 3.

Find the greatest and the smallest numbers in each row:

(i) 71834, 75284, 571, 2333, 594

(ii) 9853, 7691, 9999, 12002.

Solution:

Question 4.

Arrange the following numbers in ascending order:

304, 340, 34, 43, 430

Solution:

Question 5.

Arrange the following numbers in descending order:

53, 7333, 553, 7529, 335.

Solution:

Question 6.

Write all possible 2-digits numbers that can be formed by using the digits 2, 3 and 4. Repetition of digits is not allowed. Also find their sum.

Solution:

Question 7.

Write all possible 3-digits numbers using the digits 3, 1 and 5. Repetition of digits is not allowed.

Solution:

Question 8.

Write all possible 3-digits numbers using the digits 7, 0 and 6. Repetition of digits is not allowed. Also, find their sum.

Solution:

Question 9.

Write all possible 2-digit numbers using the digits 4, 0 and 9. Repetition of digits is not allowed. Also find their sum.

Solution:

Question 10.

Write all possible 2-digit numbers that can be formed by using the digit 3, 7 and 9. Repetition of digits is allowed.

Solution:

Question 11.

Write all possible numbers using the digits 3,1 and 5. Repetition of digits is not allowed.

Solution:

Question 12.

How many 6-digit numbers are there in all ?

Solution:

Question 13.

Write down the greatest number and the smallest number of 4-digits that can be formed by the digits 7, 5,0 and 4 using each digit only once.

Solution:

Question 14.

Rearrange the digits of the number 5701024 to get the largest number and the smallest number of 7 digits.

Solution:

Question 15.

Keeping the place value of digit 3 in the number 730265 same, rearrange

the digits of the given number to get the largest number and smallest number of 6 digits.

Solution:

Question 16.

Form the smallest and greatest 4-digit numbers by using any one digit twice from the digits:

(i) 5, 2, 3, 9

(ii) 6, 0, 1, 4

(iii) 4, 6, 1, 5, 8.

Solution:

Question 17.

Write

(i) the greatest number of 6 digits

(ii) the smallest number of 7 digits. Also find their difference.

Solution:

Question 18.

Write the greatest 4-digit number of distinct digits.

Solution:

Question 19.

Write the smallest 4-digit number of distinct digits.

Solution:

Question 20.

Write the greatest 6-digit number using three different digits.

Solution:

Question 21.

Write the smallest 7-digit number using four different digits.

Solution:

Question 22.

Write the greatest and the smallest 4-digit numbers using four different digits with the conditions as given:

(i) Digit 7 is always at units place.

(ii) Digit 4 is always at tens place.

(iii) Digit 9 is always at hundreds place.

(iv) Digit 2 is always at thousands place.

Solution: