Five plus six equals several jokes.

This is a brain teaser and there are two solutions:

1, on the other hand, watching the game, 5=9-9. After the match is reversed, move a sealed match on the second match number "9" to become the number "3", put the moved match on the first match number "9" to become the number "8", and the equation becomes "5=8-3". The chart is as follows:

2. Turn the match upside down, 5=9-9. After the match is reversed, the second sealed match with the match number "9" moves into the number "3", and the moved match is placed on the match number "5" to become the number "6", and the equation becomes 6=9-3. The chart is as follows:

Extended data

The origin of brain teasers

Brainstorming originated in ancient India. Brainstorming is a series of complete comic jokes published by the culture of the times on 1989 12.06, which changed from the comic question on the previous page to the unexpected answer after flipping through it. At that time, there was a great popular upsurge in Taiwan Province society, and all the streets and alleys were asking each other brain teasers, which evolved into a pattern of cold jokes and was later introduced to China.