In this page, arranging three or more whole numbers in ascending or descending order is explained.

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Consider the three trees shown in the figure. The pine tree, oak tree, and the palm tree. Can these be arranged in the order from largest to smallest?

- pine, oak, palm
- oak, palm, pine
- pine, palm, oak
- pine, palm, oak

The answer is "pine, palm, oak".

The largest among them is placed first position as pine. Then the rest are compared and largest among them is placed in second position as palm. Third position is taken by the last oak tree. Thus, the trees are ordered from largest to smallest.

Considering the problem : arranging trees from largest to smallest. The order is Pine, Palm, and Oak. The numbers (in this example, representing the height of trees) can be arranged from largest to smallest. This order is called *descending order*.

Consider the three trees : pine, oak, and palm tree shown in the figure. Can these be arranged in the order from smallest to largest?

- pine, oak, palm
- oak, palm, pine
- oak, palm, pine
- pine, palm, oak

The answer is "oak, palm, pine". The smallest among them is placed first position as oak. Then the rest are compared and smallest among them is placed in second position as palm. Third position is taken by the last palm tree. Thus, the trees are ordered from smallest to largest.

Considering the problem : arranging trees from smallest to largest. The order is Oak, Palm, and Pine. The numbers (in this example, representing the height of trees) can be arranged from smallest to largest. This order is called *ascending order*.

What does the word 'ascend' mean?

- to go up or climb
- to go up or climb
- to write a reason for

The answer is 'to go up or climb'.

What is the order called when numbers are ordered from the smallest to the largest?

- Pronunciation : Say the answer once

Spelling: Write the answer once

The answer is 'ascending order'.

What does the word 'descending' mean?

- to move down
- to move down
- to write a reason for

The answer is 'to move down'.

What is the order called when numbers are ordered from the largest to the smallest?

- Pronunciation : Say the answer once

Spelling: Write the answer once

The answer is 'descending order'.

*Solved Exercise Problem: *

Arrange the numbers in ascending order `234`, `73`, `423`.

- `73`, `234`,`423`
- `73`, `234`,`423`
- `234`, `73`, `423`

The answer is "`73`, `234`,`423`"

*Solved Exercise Problem: *

Arrange the numbers in descending order `873`, `9`, `99`.

- `99`, `9`,`873`
- `873`, `99`, `9`
- `873`, `99`, `9`

The answer is "`873`, `99`, `9`"

More than two numbers can be compared to arrange them in

• **ascending order** : from smallest to the largest

• **descending order** : from largest to the smallest

*Solved Exercise Problem: *

Arrange the numbers in descending order `588`, `23`, `21`.

- `21`, `23`,`588`
- `588`, `23`, `21`
- `588`, `23`, `21`

The answer is "`588`, `23`, `21`"

*Solved Exercise Problem: *

Arrange the numbers in ascending order `123`, `45`, `89`.

- `45`, `89`,`123`
- `45`, `89`,`123`
- `123`, `89`, `45`

The answer is "`45`, `89`,`123`".

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