Practice problem
Compute (1917+1918+⋯+2016)−(417+418+⋯+516)(1917 + 1918 + \cdots + 2016) - (417 + 418 + \cdots + 516)(1917+1918+⋯+2016)−(417+418+⋯+516).
1500
1550
1600
1650
Type a concept, like “slope” or “photosynthesis”.
