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Find three different ways to continue the number pattern below.
Explain the patterns you found.
2, 5 ,9 _ _ _
The answer is 14 ,20 ,27
(1)
(2)
(3)
The answer is 14 ,20 ,27
Thats not the answer! In fact, there are infinitely many answers, not just one.
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Here's the easy one explained another way.
2, 2+3, 2+3+4, 2+3+4+5, 2+3+4+5+6, 2+3+4+5+6+7
which adds up to
2, 5, 9, 14, 20, 27
igloo myrtilles fourmis
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Here's a different way.
2, 5, 9, 13, 18, 23, 29, 35, 42
3x3-7, 3x4-7, 4x4-7, 4x5-7, 5x5-7, 5x6-7, 6x6-7, 6x7-7, 7x7-7
igloo myrtilles fourmis
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Here's the easy one explained another weird way I found.
2, 5, 9, 14, 20, 27, 35
Just go left to right in below stuff, forgetting rules of order.
4x3-4÷4,6x4-4÷4,8x5-4÷4,10x6-4÷4,12x7-4÷4,14x8-4÷4,16x9-4÷4
igloo myrtilles fourmis
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(4)
(5)
Last edited by JaneFairfax (2007-10-26 14:32:42)
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