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TR-8237
Mathemagic can turn you into a human computer! Included are 4 square sticks with random single digit numbers. When placed side by side, you have four 4-digit numbers. You can instantly figure out the total of the 4 numbers! You can
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TR-6490
Become a Mathematic Wizard! The spectator throws the five dicey cubes with different random numbers. You can instantly tell the sum of the top numbers!
$3.95
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