First, write the number in the place value chart.
For example: The number 123 can be written in the place value chart as:
There are 3 ones, 2 tens, and 1 hundred.
1 hundred = 100
2 tens = 20
3 ones = 3
The expanded form of 123 is 100 + 20 + 3.
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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.