Here you find several puzzles with numbers and mathematical operations.
Try to reach the number 999, by just taking the digit 9 six times.
You can use any arithmetic operation.
How can you decrease the number 99, without subtracting any number?
Try to reach the number 30, by just using the digit 5 four times.
You can combine any arithmetic operation.
How do you like this puzzle? Is it too difficult? I'm very happy for any feedback...