I played this at an Early Years conference years ago, started collecting the 'nice' things but never got around to playing it. I think each child had a bowl and then a treasure box, full of lovely things, was passed around the circle. They all start off with 'ten nice things' and then, going around the circle each child is allowed to request another child to give them 'x' number of things from their bowl. On the second time around the circle I think the adult states a number and the children then have to either give away or ask for the requisite number of things to make the items in their bowl match the number said by the adult. My memory of it is a bit sketchy and I never tried it - with the cohort I had at the time it would have been more an exercise in sharing and taking turns than maths. Hope this helps a little.