numbers [sorting pictures into 4 backgrounds] [2]

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Drag 19 of the 20 numbers from the pile and drop them into the 4 shelves. There is a connection between these numbers which will help you sort them into 4 groups of 6. You can rearrange the order of the numbers at any time. *Take care however,!!! when you drag the last number into the grid it becomes FROZEN. To restart the activity just refresh the page.