The Combination Lock Problem: Number Sequences - Hardcover

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A hilarious comic that shows how much fun math can be. For math fans and non-math fans ages 7 years and up. Sheep, Chicken, and Goat need to take Farmer Ed's money to the bank. The farmer wrote his code on a piece of paper, but . . . Goat got hungry and ate it! He remembers Farmer Ed saying there was some kind of logic to the code. But what was it? Show more