sum (plural sums) 1  A quantity obtained by addition or aggregation. The sum of 3 and 4 is 7. ( 2 often plural) An arithmetic computation, especially one posed to a student as an exercise (not necessarily limited to addition). We're learning about division, and the sums are tricky. 3  A quantity of money. a tidy sum. the sum of forty pounds.
Most / Least Educated Cities in IA. As of 2010-2014, the total population of Ottumwa is 24,847, which is 0.60% less than it was in 2000. The population growth rate is much lower than the state average rate of 5.19% and is much lower than the national average rate of 11.61%.
Orlando Population 2017. Orlando has an estimated population of 254,000, which ranks 77th in the United States and a population density of 2,327 people per square mile, or 899 per square kilometer.