Student Instructions
Objective: Use math drawings to represent subtraction with up to two decompositions, relate drawings to the algorithm, and use addition to explain why the subtraction method works.
Watch Ms. Enny model the problem first!
Click the
Solve by using the
to move the place value disks in the Hundreds, Tens and Ones
Use the
to take away from the Hundreds, Tens and Ones!
Use the
or
to type your answers
Turn in by