Rearrange exactly 2 matches to make this a valid equation.

In matchstick math puzzles, you are not allowed to make an inequality symbol such as ≠, ≥, >, <, or ≤. That would make it too easy!

#### Solution

Make the first 3 into a 2 by moving the bottom right vertical match to the bottom left, and move the vertical match from the + sign to the bottom left of the 5 to make a 6:

23 – 7 = 16