Question

21 (a) Omar is thinking of a square number between 1 and 100
It is an odd number.
It has two digits.
The sum of its digits is 9
What is the number?
[1]

Answer 1

Respuesta:

81

Explicació8n paso a paso:

It has 2 digits: 8 and 1.

The sum of its digits are 9: 8+1=9