These awesome addition boards help children understand how to add in columns of units, tens, hundreds, and thousands and even carry over. It is interactive and multisensory helping children learn through play and understand difficult concepts.
 
3 options:
 
1. Tens and Units Board: 4 sets of number disks included
2. Hundreds, Tens, and Units Board: 6 sets of number disks included
3. Thousands, Hundreds, Tens, and Units Board: 8 sets of number disks included