See if you can encourage your family to join in with solving these challenges too - work together or have a competition to see who gets closest to solving them.
This week, Challenge 3 will be a perfect opportunity to show off those place value, addition and subtraction skills you've been working on in the other activities.
We haven't done perimeter yet, but here's a link to a video explanation that might help you if you want to go the extra mile and try Challenge 4:
Remember to share your solutions on Dojo too!
As a guide, the challenges get harder as you work through them - so start with Challenge 1 and see how far you can go!