Status Updates From Secrets of Mental Math: The...

Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks
by

Arthur T. Benjamin

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Harry is on page 62 of 279

Multiplication two digit numbers with two digit numbers.

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Harry is on page 43 of 279

I learned fast (mental) multiplication of one digit number versus two or three digit number

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Harry is on page 28 of 279

Learned fast mental multiplication by 11 of 2 and 3 digit numbers. Fast mental additiotion and subtraction of 2, 3, 4 digit numbers

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Linda B is on page 76 of 303

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Mathe Magie: Verblüffende Tricks für blitzschnelles Kopfrechnen und ein phänomenales Zahlengedächtnis

Linda B is on page 52 of 303

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kelp dog is on page 36 of 279

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kelp dog is on page 15 of 279

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Tshepiso Selebi is on page 31 of 279

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Nick is on page 21 of 279

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Nick is on page 15 of 279

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Aidamorenom is on page 31 of 279

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Aidamorenom is on page 30 of 279

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grandmalily is on page 65 of 279

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grandmalily is on page 50 of 279

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goose is on page 20 of 279

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grandmalily is on page 44 of 279

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grandmalily is on page 28 of 279

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Amicia is on page 65 of 279

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Ronald Michalsky is on page 50 of 279

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T is 33% done

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Sam Doran is on page 42 of 279

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T is 30% done

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T is 27% done

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T is 23% done

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Doreen is on page 10

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Sarah is on page 10 of 304

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Amicia is on page 48 of 279

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Ethan Lee is on page 72 of 279

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Doreen is starting

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Ethan Lee is on page 24 of 279

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