These mini math puzzles are designed to exercise your mind and build your mental arithmetic skills. No calculators needed, instead use pen and paper for your calculations. Solving these puzzles gets easier as your mental arithmetic improves. Each square has four sums, two across and two down. Each square has addition, subtraction, division, and multiplication. Each sum is missing two of the three numbers that make up the sum, except for one of the sums that is missing only one number. Start with this one and once you have solved it, move on to the next until you have solved all the sums, completing the puzzle. Printed in extra large print - 21 point font - making them easier to read and reducing eye strain. 432 mini math squares to solve Full solutions included at the back of the book Perfect for seniors Surprisingly challenging but so enjoyable to solve.
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