Guess the Number
Guess the number game, in which given a maximum and a minimum number, you must enter an intermediate number and observe how the interval narrows, until you discover what number it is. The aim of the game is to guess the number in as few tries as possible. You can use the strategy of splitting the interval in half, to make an approximation algorithm in this way. You can also take a risk by writing numbers closer to the end of the interval. A number skills game to guess a random number less than 1000. This game may be suitable for children of about 8 years old, at which age they usually know numbers up to 1000.