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Un article trouvé pour ce sujet.
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A toad climbs the stairs |
2008-01-22 |
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Kate pose la question :
The question is:
A small toad is sitting at the bottom of the stairs. He wants to get to the 10th step, but is having some difficulty. He jumps up 2 steps and then back 1 each time. How many jumps will he take to reach the 10th step?
Stephen La Rocque and Penny Nom lui répond. |
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