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spare parts 4

3/17/12

Can you draw a circle with a dot in the middle WITHOUT lifting your pencil off the paper? (watch the video)

Pi.2012 (Just 3 more years 'til 'Super Pi Day': 3.14 15)

A publisher used 582 digits to number a book from page 1 to its last page.

How many pages are in the book?

3/12/12

Using each number 1 through 9 EXACTLY ONCE, fill in the boxes below to make a correct equation.

(**The odd numbers are on the left; the evens are on the right side of the equation)

(More solutions contributed by George G. in Phoenix, AZ)

3/8/12

"4 Hats for 4 Gentlemen"

(The host of a restaurant holds 4 hats in the coat room..)

After dinner, 4 gentlemen go to get their hats.

What is the probability that ALL four gentlemen randomly receive the wrong hats?

Math Comic #152 - Magic Act

3/3/12

"Eight and Infinity"

Question: How can you add eight 8's to get 1000?

Topic for Discussion: Is Infinity a Number?

Webcomic #21: "Eight to Infinity"

(click lower right corner to view)

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