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Adding Three Fractions Middle-School (grades 5 through 9) math program written to provide skills in context. Students addone of two types of problems: ruler fractions (halves, fourths, eighths, sixteenths) or regular fractions.
saMagicSquares Calculate magic squares: odd, singly-even (n=4m+2), and doubly-even (n=4m) orders. Rotate, reflect, translate the matrix; exchange pairs of cells, columns, or rows. Save in a *.csv file and reload later.
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