Page 13 - SM Class 4 Inner.cdr

Forming A Number
To make Smallest Number

First we arrange the digits in ascending order. If 0 is present in one of the digit,

it will place at second place after the smallest digit.

To make Greatest Number
To write the greatest number, digits are arranged in descending order.

Example 5 : Write a 6-digit smallest Example 6 : Write a 6-digit
number using 5, 3, 0, 7, 4, 2. greatest number using
Solution : Write all digits in ascending 9, 2, 7, 1, 5, 0
order. Solution : Write all digits in
0, 2, 3, 4, 5, 7 descending order 9, 7, 5, 2, 1, 0
Here 0 is one of the digit so the So the number is 975210
number will be 203457

E xercise 1.2

1. Put > or < in given boxes :

a. 97682 98762 b. 32546 32456
c. 189354 189543 d. 468192 469182
e. 75324 75342 f. 641352 645132

2. Arrange the following in ascending order :
a. 47325, 683925, 71438, 493258, 61824

b. 13579, 248150, 43705, 20560, 149261
c. 51805, 94379, 68932, 414141, 543280

d. 58532, 85382, 358423, 485332, 258383

3. Arrange the following in descending order :

a. 47522, 62954, 639180, 49160, 637203
b. 44154, 504040, 47940, 275250, 28980
c. 124559, 32319, 20992, 32554, 342512

d. 879635, 89603, 85049, 54809, 890650

4. Form the smallest and greatest numbers using the given digits :
a. 3, 4, 5, 0, 7 b. 8, 5, 0, 4, 3 c. 4, 6, 1, 9, 8

d. 8, 7, 1, 0, 9 e. 1, 0, 5, 4, 2 f. 7, 8, 2, 4, 1

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Mathematics In Focus - 4