A magic square is a box of nine numbers arranged so that any line of three numbers adds up to the same number, including on the diagonal! Teachers and kids will love finding out about this popular teaching tool that is still used in elementary schools today!
Ben Franklin and the Magic Squares
$7.99
Available in stock
Weight | .1 kg |
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Dimensions | 9 × 6 × .2 in |
ISBN 13 | 9780375806216 |
Published Date | 2001 |
Author | Frank Murphy |
Publisher | Random House |
Format | Paperback |
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