Today we worked with the number 4 :) we were supposed to use four 4's and make math equations that equaled numbers 0 - 9.
for example: for the number 0, you can do:
44 - 44 = 0 <-- there are four 4's in this equation :):)

0: 44 - 44 = 0 OR 44 - 44 = 0
1: 4 / 4 + 4 - 4 = 1 OR 44 / 44 = 1
2: (4 / 4 ) + ( 4 / 4 ) = 2
3: ( 4+ 4+ 4 ) / 4 = 3 OR 4 x 4 - 4 / 4 = 3
4: [ ( 4 - 4 ) 4 ] + 4 = 4 OR 4 x 4 / *the square root of* 4 - 4 = 4
5: 4 x 4 + 4 / 4 = 5 OR [ ( 4 x 4 ) + 4 ] / 4 = 5
6: ( 4 + 4 ) / 4 + 4 = 6
7: ( 44 / 4 ) - 4 = 7
8: 4 - 4 + 4 + 4 = 8
9: 4 / 4 + 4 + 4 = 9

done. :)