In negative contractions, that is, contractions with the word “not,” we cross out the “o” in “not” and replace it with an apostrophe.
He doesn’t (does not) care about her anymore.
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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.