One way at Nodehill that teachers test the children's table knowledge is to give them torture tables tests. These consist of the children completing times table grids of various sizes within a specified time. A note of the number of facts the children got correct, plus the time they took will then be noted. The idea is that if they are practising their tables at home then their scores will increase each time, or their time become faster.
In order for the children to practise at home I have included a torture table grid for you to download. If they get familiar with the numbers being in the order given you can always change the order on the sheet.