Put the numbers in order from smallest to biggest.
Why don't you pretend to walk the plank yourself by balancing along a straight line made with sticky tape or string; Or even a plank in your garden if you have one!
Now practise using positional language to move across your plank like a pirate! OR you can instruct an adult at home to walk the plank!
Use these words:
Forwards, Backwards and Sideways.