These 12 Math Fact Booklets are designed for use in a Montessori classroom, but they can be used in any classroom or at home. Perfect for pre-K, K (kindergarten), 1st (first), 2nd (second), and 3rd (third) grades. There are 3 booklets for each operation. Each booklet represents another tier of difficulty.Find Related ProductsMath FactsAddition FactsSubtraction FactsMultiplication FactsDivision FactsPrimary MathLower Elementary MathSet of Printable Files & Suggested ImplementationAddition