This is a 5 worksheet combo set, which means you save over the cost of buying them separately! It includes all the Doubles&Halves, Squares and Square Roots worksheets. Here is their description: This worksheet is for practice recognizing the differences between doubling and square, square roots, and halving. A table has n, n^2, sqrt n, 2n, and n/2. For each row one of the valuse is given and you have to find the others. Also gives an opportunity to talk about patterns.