Domino Sorting
Even: 1,1 2,0 2,2 3,1 3,3
Odd: 1,0 2,1 3,0 3,2
None left over because all numbers either even or odd
Pairs to make 5:
2,2 and 0,1 0,3 and 0,2 1,2 and 1,1
or 3,1and 0,1 0,3 and 0,2 1,2 and 1,1
or 2,2 and 0,1 0,3 and 1,1 and 1,2 and 0,2
or 3,1 and 0,1 0,3 and 1,1 1,2 and 0,2
Description:Try grouping the dominoes in
the ways described. Are there any left over each time? Can you
explain why?