Incredible Shrinking Dollar
"Incredible Shrinking Dollar" by Dan Meyer CC BY-NC 3.0
If he copies the dollar eight times (total), what size will the final copy be?
Write down a guess that you think is too small.
Write down a guess that you think is too big.
What information would be helpful in answering the question?
Write down a guess that you think is too small.
Write down a guess that you think is too big.
What information would be helpful in answering the question?
| dollar_size.pdf |
If Dan wanted to expand the 8th copy of the bill back to its original size with one copy, what percentage would he set the copier for?
You could turn a US dollar coin (26.5 mm diameter) into the size of a dime (17.91 mm diameter) by copying it four times at 90%. Show two other ways you could do the exact same thing.
You could turn a US dollar coin (26.5 mm diameter) into the size of a dime (17.91 mm diameter) by copying it four times at 90%. Show two other ways you could do the exact same thing.