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What is the sum of all two-digit whole numbers whose squares (think exponents!) end with the digits 21? What is the sum of the two digit numbers?
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1 vote
What is the sum of all two-digit whole numbers

whose squares (think exponents!) end with the
digits 21?
What is the sum of the two digit numbers?

User Lavina
by
4.0k points

2 Answers

5 votes
11 x 11 = 121…………………..
User Lhlmgr
by
4.5k points
4 votes

Answer:

11x11

Explanation:

11 x 11 =121

User Brady Zhu
by
4.0k points
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