The Davidson Group

Add & subtract by 2

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Add & subtract by 3

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Add & subtract by 4

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Add & subtract by 5

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Add & subtract by 6

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Add & subtract by 7

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Add & subtract by 8

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Add & subtract by 9

$0.99

Skip count by twos

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Skip count by threes

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Skip count by fours

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Skip count by fives

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Skip count by sixes

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Skip count by sevens

$0.99

Skip count by eights

$0.99

Skip count by nines

$0.99

Equal groups as multiplication

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Add 10, subtract 1 to multiply by 9

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Multiply by 2

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Multiply by 3

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Multiply by 4

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Multiply by 5

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Multiply by 6

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Multiply by 7

$0.99

Multiply by 8

$0.99

Multiply by 9

$0.99

Divide by 2

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Divide by 3

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Divide by 4

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Divide by 5

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Divide by 6

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Divide by 7

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Divide by 8

$0.99

Divide by 9

$0.99

Multiply & divide by 0 & 1

$0.99

Mixed division

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Multiply & divide within 100

$0.99

Mixed skip counting

$0.99