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If your students need practice with their subtraction facts within 20, these cards are for you! They can be used as flashcards or task cards and can be used whole group, small group, at a center or even independently. I've included an answer key and recording sheet as well.
Missing minuend (the first number in a subtraction problem) and subtrahend (the second number in a subtraction problem) cards are far better than traditional flashcards because they require students to use the properties of addition and subtraction during computation. Download the preview for a sample and try them with your students -- you'll be amazed with their achievement after only a short time of using these cards!