Because the ten times table is a relatively easy table to learn this game becomes more a game of strategy. Can the player going second win the game? The idea is to get four in a row by working out which numbers need to be multiplied by 10 to get the answers on the grid.
The government has frowned on the use of calculators with young children, but I am wholly in favour of them if they are used in the right way. No doubt they will change their minds in the future!
Calculator game: 10x table