Answer:
To represent the number 231 using the same number of tens and ones, we can have 11 tens and 11 ones.
11 tens would be equal to 110, and 11 ones would be equal to 11. When we add these two numbers together, we get:
110 + 11 = 121
Therefore, to represent the number 231 using the same number of tens and ones, we have 11 tens and 11 ones, which is equal to 121.