rewrite the addition sum given below using digits. Each letter is used for a different digit. Answer the questions given below

i) Which digit did you find first?
ii) How did you find R and U?
........F.O.U.R
...........O.N.E
....T.H.R.E.E
....T.H.R.E.E
_________
E.L.E.V.E.N
nOTE: fullstops are put so that the numbers don't get jumbled up

To rewrite the addition sum using digits, we need to assign a unique digit to each letter. Let's go through the process step by step:

i) Which digit did you find first?
To find the first digit, we can look for letters that have restrictions on the possible digits they represent. In this case, "E.L.E.V.E.N" appears at the bottom, so we know the "E" digit is 1 because the sum is "ELEVEN."

Now let's rewrite the sum with the digits we found:
....4.1..
....1....
..3.3....
..3.3....
_________
.11.5....

ii) How did you find R and U?
After assigning the digit 1 to "E," we can determine the values of "R" and "U."

Looking at the columns with "R" and "U," we can see that the sum of the digits beneath them (excluding the carry-over) is always equal. Therefore, the digits "R" and "U" must be equal to 1.

Now let's rewrite the sum with the updated digits:
....4.1..
....1.1..
..3.3....
..3.3....
_________
.11.5....

To summarize:
i) The first digit found was "E," which is equal to 1.
ii) "R" and "U" were found by observing that the sums beneath them were equal and thus equal to 1.