Ballast
Ballast Is a maths task that you use to to even out numbers like a seesaw.First of all you have to pick a random batch of numbers those numbers will equal out if your boat is going to sink or not.So the first box is times table so what ever you put in the first box you have to times.For example i used 3,1,2,5,4 so i put 2 and 4 in the first box which will equal up to 8.In the second box I used the rest of the numbers which was 3,1,5 the first side was equaled 8 and the second side equaled 9 so I was 1 off which made the ship sink.Next I switched 1 with 0.Then I put 4 and 2 in the first box then put 0,3,5 in the second again i added 4x2=8 and 3+0+5=8 which makes the ship balanced then i completed the task.Its alright if you make mistakes my mistake equaled up to success