Numberblocks

One: I'm 1 x 1! Two: 2 x 2! Three: 3 x 3! Four: 4 x 4! Five: 5 x 5! Makes a grid! Six: 6 x 6! Seven: 7 x 7! Eight: 8 x 8! Nine: 9 x 9! Ten: 10 x 10 makes a booster grid!