Consider the subtraction sentence:
6 – ? = 2
Let's find the missing number.
To find the number which when subtracted from 6 gives 2 as the result.
6 – 4 = 2
So, the number which completes the subtraction sentence is 4.
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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.
21,27,23
21 is the smallest number.