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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GenericUser asked Sep 10, 2023

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29 votes

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?

Mathematics
middle-school

GenericUser asked Sep 10, 2023

by GenericUser

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18 votes

11 x 11 = 121…………………..

Ashley Pillay answered Sep 11, 2023

by Ashley Pillay

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20 votes

Answer:

11x11

Explanation:

11 x 11 =121

Rohit Dhawan answered Sep 16, 2023

by Rohit Dhawan

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