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Number Munchers


Skills:
Level:
Class Size:
Listening
Beginner- Intermediate
2 or more players
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Materials: Calculator (optional)

Objective

Number Muchers is popular party trick that you can use to help your students practice the four basic math operations (addition, subtraction, multiplication and division).

The trick requires that you find a word that is radomly choosen by the class.

See Also: Math Number Muchers and Birthday Number Munchers

Instructions

1. Take a novel or thick book with plenty of pages. Ask a volunteer from the class to open the book and choose a line from the first nine lines of the page, and a word from the first nine words of that line. Turn your back on the class or leave the room while a student chooses a word and tells it to the other students in the class.

2. Let's say your student is using The New Oxford Dictionary of English and picks the second word (current) on page 50 from the definition alternating current.

Procedure

  • Double the number of the page
  • Multiple by 5
  • Add 20
  • Add the line number(down)
  • Add 5
  • Multiply the result by 10
  • Add the number of words in the line (accross)
  • Add 1111
  • Subtract 1361 from the total
  • Example

  • 50 x 2 = 100
  • 100 x 5 = 500
  • 500+20 = 520
  • 520 + 8 = 528
  • 528 + 5 = 533
  • 533 x 10 = 5330
  • 5330 + 2 = 5332
  • 5332 + 1111 = 6443
  • 6443 - 1361 = 5082
  • 3. In the above example of 5082, the page is page 50, the line is line 8, and the word accross is word number 2. Before you give the answer, pretend to think for a while, thumb through the pages than go to the right page and ask: "Is this the word?" There should be a look of surprise and amazement from your audience.