Counters in a cup

Here is another game we explored this week practicing composing and decomposing numbers.  It is called counters in a cup.  Partners decide how many counters to use for the game. Partner 1 hides some counters under a cup, partner 2 records how many are outside the cup and then solves how many are still inside the cup.  Partner 2 checks their thinking by lifting the cup and counting the counters under the cup.  Partner 2 then records that on paper to help practice their number formation and then partners switch roles.