Teachers, save “Montessori Dynamic Subtraction With the…” to assign it to your class.

Use the feature to drag the stamps around your work space. Build the top number on the color coded mat. Using drag the stamps and subtract the number of units, tens, hundreds, and thousands from the top number. Count the remaining number of units, tens, hundreds, and thousands. Use the tool to sort through the stacked numeral tiles to record your answer under the problem. Restack the number tiles to make your work tidy!