Sam and I had fun this afternoon making and comparing 3 digit numbers - with a little spider twist! We each rolled 3 dice and created the biggest number we could on our own mat. Then we compared them, found the largest and worked out the difference.
I supported Sam and showed him place value and jump-back strategies to work out the difference.
You could provide more challenge to students by using 9 sided dice and also by asking to add the numbers to find an overall total.
Here you can see how Sam worked out the difference between 655 and 552 using a whiteboard and a jump-back number line strategy.