There are four types of sentences:
A declarative sentence forms a statement. It tells about something and always ends in a period (.).
I have traveled the whole world.
An interrogative sentence asks a question. It always ends in a question mark (?).
Where is the library?
An imperative sentence makes a command or a polite request. It ends in an exclamation point (!) or a period (.). If the command is forceful, use an exclamation point. If the command is polite or it is a request, use a period.
Please turn off the radio. (polite request)
Get out! (command)
An exclamatory sentence shows surprise or strong feeling. It always ends in an exclamation point (!).
I can’t wait to see the game!
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.