The ubiquitous Banker's Game that uses the Montessori Golden Bead set to show children the mechanics of long addition, subtraction, multiplication and division.
If you have not seen the Golden Bead material, the large cube below represents one thousand, the flat square represents one hundred, the bar has ten beads, and the unit is one. All of the material contains the actual number of beads, making it accessible and fascinating to young children learning math. The setup for the Banker's Game contains a lot of these bead materials!
A sample long addition problem might look like this: 2489 + 9750 = ? Your child would take the representative number of each thousands, hundreds, tens, and units, and then add them to get the sum. The process is very important because it helps create the link between concept and concrete.
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