Usually I drill the older kids on math facts during lunch. (Actually they like this. In fact today Deux melted down because Duchess took "his" problem, therefore he rightly should get to do TWO more before it was her turn.)
So then the twins want to be included. Unfortunately their repertoire of mathematical understanding is somewhat limited, and they quickly tire of "How many fingers am I holding up?" (They're really strong up to five. They haven't quite grasped the concept that you can consider the fingers of both hands in one group, though, so we're stuck at five for now.) So then they want different questions.
"Ask me a car question!" Dash demands.
"Umm . . . what do you put in a car to make it go?"
"Wheels!" he says. I try Dot. "What do you put in a car to make it go?"
"An engine!" she says.
"Well, true," I concede. I turn to the big kids.
"PEOPLE!" they shout.
"Technically," I point out, "You could get the car to run without people in it. Although it would be a bad idea."
I come around to Dash again. "Ask me a tree question!"
"Umm . . . if you cut down a tree, does it fall down or does it fly up in the air?"