ERIC Number: EJ445011
Record Type: Journal
Publication Date: 1991
Reference Count: N/A
Sneaky Numbers: A Source of Investigations.
Brown, Ian C.
Mathematics in School, v20 n3 p12-13 May 1991
Described is an activity that categorizes a two-digit number as "sneaky" if the continued process of taking the difference of the squares of its digits leads to a difference of zero. Other categorizations are determined by whether the difference process ends in a one-digit number or continues in a loop of numbers. (MDH)
Publication Type: Journal Articles; Guides - Classroom - Teacher
Education Level: N/A
Audience: Teachers; Practitioners
Authoring Institution: N/A