4-Digit Dynamic Subtraction Montessori Command Cards & Control of Error 2

4-Digit Dynamic Subtraction Montessori Command Cards & Control of Error 2
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(119 KB|5 pages)
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These Montessori subtraction questions are for practicing independent work in math.

10 dynamic subtraction problems with the control of error (difference/answer) included on the back of the subtraction problem so children really can work and check their work independently.

Many other command card sets do not include the answer on the back, which makes the child reliant on the teacher for the control of error.

The numerals are coloured according to the Montessori math hierarchical colors. The cards are numbered 'D1' (Dynamic 1) through 'D10'.

Children can use these cards with Montessori materials if they wish. Suggested materials include stamp game, small bead frame, or golden bead material.

This file is in PDF format.

Log in to see state-specific standards (only available in the US).
Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
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5 pages
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