there are 100,000 narwhals

only 100 of them have horns because they are males
the rest are females so they don't have horns

how many narwhals don't have horns
:P

100,000 - 100 = ?

99,900

Right!

To find out how many narwhals don't have horns, you need to subtract the number of narwhals with horns from the total number of narwhals. In this case, there are 100 narwhals with horns, and the total number of narwhals is 100,000.

So, to find the number of narwhals without horns, the calculation would be:

Total number of narwhals - Number of narwhals with horns = Number of narwhals without horns

100,000 - 100 = 99,900

Therefore, there are 99,900 narwhals that don't have horns.