Page 16 - Math Skill - 4

14 Maths

2. Find the smallest number in each collection.

(a) 76181, 13582, 66125, 21656 (b) 10089, 18008, 118002, 181003
(c) 789513, 125877, 777756, 785946 (d) 543016, 540571, 550678, 540087
3. Arrange the following numbers in ascending order.

(a) 6060, 6600, 6660, 6006 (b) 62372, 236728, 62732, 238952
(c) 684, 45100, 9802, 89999 (d) 843671, 835689, 853788, 853889

4. Arrange the following numbers in descending order.
(a) 6974, 42149, 387562, 66409 (b) 55328, 589908, 63534, 664092

(c) 828272, 728272, 828227, 728288 (d) 357389, 357499, 347490, 340598

Successor and Predecessor

Successor of a Number

The successor of a number is 1 more than the number.

So, we have to add 1 to the number to get its successor.
For example, Successor of 457126 is 457126 + 1 = 457127

Successor of 14576 is 14576 + 1 = 14577

Predecessor of a Number

The predecessor of a number is 1 less than the number.
So, we have to subtract 1 from the number to get its predecessor.
For example, Predecessor of 50640 is 50640 – 1 = 50639 Absorbing Facts

Predecessor of 10000 is 10000 – 1 = 9999 While forming the smallest number, if
0 is among the digits, it is placed at the
Forming Numbers second place after the smallest digit.

™ To form the smallest number, we arrange the
given digits in ascending order. Fact-o-meter

™ To form the greatest number, we arrange the The smallest 5-digit number
using the digits 4,0,3,2,1:
given digits in descending order.
012347 102343
Let’s Attempt

Example 1: Form the greatest and the smallest 5-digit numbers using the digits 2, 4, 0, 9, 5.
Solution: Greatest number: 95420

Smallest number: 20459
Example 2: Form the greatest and the smallest 6-digit numbers using the digits 5, 6, 8, 7, 1, 3.
Solution: Greatest number: 876531

Smallest number: 135678