So just add 2 to 10 and what do you get ... This can be solved by partitioning one of the numbers. Here are two tens frames showing 8 orange counters. Here are 4 yellow counters which are going ...

There are 20 creatures altogether. We can use a part-whole model to show the two groups and the total of 20. We can use a part-whole model to show the two groups and the total of 20. We can use a ...