Buckets of Reasoning: NRich

I was looking for maths activities to go beyond mental maths skills and was referred to the Nrich website - a really cool 20-year strong website with really loads of material. Baby steps first, I went to Stage 1 & 2 and then from there Features > Reasoning > Identifying Opportunities (task) > Eggs in A Basket, where you'll find the notes for the delivery of the activity and the actual activity. Below is our (father+son) Sunday afternoon version of the activity (in Portuguese).