Here is the template and also some of the game in action.
This idea is that the students roll a dice (dotted dice, so they have to subatise) and when they roll a number that is left on the sheet, they add that many blocks and build mathematics tables. To keep the game rolling, when they finish the sheet, they write their name on the board then play again. Race to see how many ticks you can get next to your name. I usually play this game in pairs as I don’t thousands of blocks!