Arranging numbers in ascending order and descending order.

We know, while arranging numbers from the smallest number to the largest number, then the numbers are arranged in ascending order.

**Suppose for example,** 81, 97, 123, 137 and 201 are arranged in ascending order.

Vice-versa while arranging numbers from the largest number to the smallest number then the numbers are arranged in descending order.

**Suppose for example, **187, 121, 117, 103 and 99 are arranged in descending order.

**Examples on arranging numbers in ascending order:****1.** Write the following numbers is ascending order:

42734; 5358; 42876; 52287.

**Solution:**

Count the digits in each number.

5358 Is the smallest number as it has only 4 digits.

Line up the number accordingly to place value.

Begin comparing from the left.

5358 ← smallest number

42**7**34

42**8**76

7 < 8

**5**2287 ← Largest number

The ascending order is 5358; 42734; 42876; 52287

**2.** Arranging numbers in ascending order:

3679; 3542; 3797; 3545

**Solution:**

The digit in the hundreds place in each number is 3.

On comparing the hundreds place; 3**6**79; 3**5**42; 3**7**97; 3**5**45

We find: 3797 to be the greatest and 3679 to be smaller.

On comparing the tens place in the two remaining numbers we find both

numbers to be the same. 35**4**2; 35**4**5

On comparing the ones place, we find 3545 > 3542

So, the ascending order is 3542 < 3545 < 3679 < 3797

**Example on arranging numbers in descending order:**

Write in descending order:

32593; 60537; 28524; 57198

**Solution:**

Compare digits according to place value.

Descending order means arranging numbers from the largest number to the smallest number;

60537 > 57198 > 32593 > 28524

**Related Concept **

● Numbers Showing on Spike Abacus.

● 1 Digit Number on Spike Abacus.

● 2 Digits Number on Spike Abacus.

● 3 Digits Number on Spike Abacus.

● 4 Digits Number on Spike Abacus.

● 5 Digits Number on Spike Abacus.

● Problems Related to Place Value.

● Example on Comparison of Numbers.

● Successor and Predecessor of a Whole Number.

● Formation of Numbers with the Given Digits.

● Formation of Greatest and Smallest Numbers.

● Examples on the Formation of Greatest and the Smallest Number.

**4th Grade Math Activities**

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