Monday, May 17, 2010

Guess The Number

Introduce younger students to logic problems using Mathwire's Guess the Number collection.  Give students more practice in using the hundred board to solve number clue problems. Once again, students solve the problem clue by clue. With this set, however, students must use multiplication, money, and measurement facts to correctly solve the problem and guess the number.

Here's a sample problem:
  • The number is greater than the number of pennies in a quarter.
  • The number is less than the number of pennies in five dimes.
  • The number is an odd number.
  • If you count by 5s, you say the number.
  • The sum of the digits is 8.
What is the number?

Check out Guess the Number on Mathwire to download more problems and their solutions.  Be sure to read suggestions for using these problems in math classes.  After solving several, encourage students to write their own original Guess the Number logic problems.

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