Maths in Room 7

I just have to do this so I have things underway. It seems weird not doing Mantle of the Expert updates this year, especially since we will continue to use this approach. I will probably put Mantle stuff in here anyway.
I figured maybe it would be a good idea to put some of my favourite warm up games on my blog, so each week I shall try to remember to do this, and I guess with all the Maths PD we will get this year, I will have a bunch more to add to my list.
My first and most favourite best maths game is Cross Out the Singles.
A 3x3 grid is drawn in maths books or scrap paper, and I always do a copy on the board. Children take turns rolling a die and call out the number rolled. Each roll is recorded in any box on the grid. At the end of 9 rolls, numbers are added as rows, columns and both diagonals. Any total that comes up once is crossed out, any that come up more than once are kept and these are all added together. The person with the highest score wins... and it is never me, even though I try!
The best thing about this game is that as the year progresses, I add rules to the number rolled, eg. add 4, or add 3  and then multiply by 2. This way we start dealing with larger numbers, we can practise tables at the same time, and by the end of the year I can throw in a few decimals just for fun!
I took photos today and I hope my instructions are clear. I feel like I am waffling already. But it is a good game because it can be adapted, and once the kids know the rules, we do adapt it, and they can choose the rule, and they love calling out the answer. Someone will roll 5, I will say "plus 3," they yell out, "8!" I say, "times 4," and they hopefully yell, "32!" It's not really yelling, but if they call out all together then they feel less put on the spot and if they aren't sure then no one else notices they haven't answered. Anyway, here are the photos, and a couple of symmetry things and also out sticky numbers which we use for other games.

Symmetry

Symmetry skeleton names

Sticky numbers that the children coloured

Today's game, the rule was +4, x3

The game with no rule

Figuring out how to add the totals quickly

Sharing ideas on the best way to work it out.

And yes, they choose to sit on the floor!