4 games in one:
1. The Plus-detectives
Whoever is savvy and has lots of luck will collect the
most number cards.
2. Quick Plus-detectives
Play according to the rules of Plus detectives, except for the players calculate all at once.
3. The ten times table detectives
Whoever is savvy and has lots of luck will collect the most
number cards.
4. The speedy ten times table detectives
The same rules apply as in the “Ten times table detectives”,
except all players calculate simultaneously.