What we know:
The convention center has 18 pianos.
Each piano has 88 piano keys.
How to solve:
To find out the total number of of piano keys, we need to multiply the number of pianos that are at the convention center by the number of piano keys that are on each pano.
Number of pianos → 18
Number of piano keys → 88
18 × 88 = 1,584
Therefore, there are 1,584 keys at the convention center.
