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Approximate Digit Use

Class Session 5
Problem Statement
Use the digits 1, 2, 3, 4, 5, 6, 7, and 8 exactly once to make two decimal numbers whose product is approximately 0.16.

0. ___ ___ ___ ___   x       0. ___ ___ ___ ___ =~ 0.16

(Source: Mathematics Teaching in the Middle School, Nov-Dec1995).
 

 

 

Plans to Solve/Investigate the Problem

I am looking for a product of decimals to multiply to be a perfect square.  Ultimately, I want both decimals to be close to the square root of this number.

 

 

 

Author & Contact

Mhouston@rockdale.k12.ga.us