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ERIC Number: EJ1146904
Record Type: Journal
Publication Date: 2017
Pages: 1
Abstractor: ERIC
ISSN: ISSN-0045-0685
de Mestre, Neville
Australian Mathematics Teacher, v73 n2 p12 2017
Suppose that there is an inexhaustible supply of $3 and $5 vouchers from the local supermarket. They may only be exchanged for items that cost an exact number of dollars made up from any combination of the vouchers. What is the highest amount not able to be obtained? This is an interesting problem in mathematical thinking and logic requiring only the ability to add. It is, therefore, suitable for junior high school students.
Australian Association of Mathematics Teachers (AAMT). GPO Box 1729, Adelaide 5001, South Australia. Tel: +61-8-8363-0288; Fax: +61-8-8362-9288; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Secondary Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A