Definition Of sums
a particular amount of money.
they could not afford such a sum
an arithmetical problem, especially at an elementary level.
You saw crates of certain sizes, and then you would do your sums and then do your deductions from that.
find the sum of (two or more amounts).
if we sum these equations we obtain x
the total amount resulting from the addition of two or more numbers, amounts, or items.
the sum of two prime numbers