Math Essentials Book 3 : Adding and Substracting Fractions View cart “From the Mixed-Up Files of Mrs. Basil E. Frankweiler” has been added to your cart. $20.00 Math Essentials Book 3 : Adding and Substracting Fractions quantity Add to cart Categories: All Products, Mathematics Description Description Adding and Subtracting Fractions Related products From the Mixed-Up Files of Mrs. Basil E. Frankweiler $20.00 Add to cart April Raintree $20.00 Add to cart Les chiens $18.00 Add to cart Touching Spirit Bear $20.00 Add to cart