This material is a must for any 3-6 or 6-9 Montessori classroom to aid children in the memorization of subtraction facts with linear counting. I have made 5 levels to this set, each level consisting of 15 numbered cards, each card consisting of 5 mixed operation/subtraction problems. Level 1 simply begins with only 2 addends and 1 subtrahend to find the difference for each problem. Each level becomes increasingly more challenging with higher numbers, more digits, and no set addition or subtraction pattern for each problem. After completing 75 cards, and 375 mixed operation problems, a child will have self-confidence and mastery of addition and subtraction facts to move into abstraction.
To reinforce the Montessori operation colors, print these cards on green paper, cut, and laminate. If you do not have the Subtraction Snake Game Montessori lesson plan, please message me under "Ask A Question" and I will gladly send you a copy of my lesson.
***My “Addition Snake Game ~ Search for 10” and “Addition Snake Game” card sets are the ideal preparation lessons for this material, and are also available in my TpT store.
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