The concept of this game is simple. You have to guess the four digit number that the other player chooses. The game requires two players. One player starts by secretly writing down a four digit number. The second player uses the printable grid to guess the number. They write their first guess in the first row. The first player then tells them which digits are correct by marking them with a star (if correct and in the correct spot), a check mark (if correct but in the wrong place), or an X if it is the wrong number. They keep moving down the grid until they guess the right number. They have to guess the number in 10 guesses- until they fill up the grid. Then they switch positions and play again.
Your kids will have lots of fun playing this one. They won’t even realize they are doing math!
I printed our grid out on card stock and laminated it That makes it re-usable for multiple games.
Original article and pictures take http://teachbesideme.com/safe-cracker-printable-math-game/ site