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| Math Central | Quandaries & Queries |
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Question from Haku, a student: if there are 8 dots in the first shape, 13 in the second, 19 in the third, and 26 in the fourth, then what is the formula? |
Haku,
The numbers are 8, 13, 19 and 26.
What is the difference between 13 and 8?
What is the difference between 19 and 3?
What is the difference between 26 and 19?
What is the next number?
Penny
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