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Number theory Difficulty 1.1 Junior Find the answer Canada

Which of these numbers gives a remainder of 3 when divided by 5?

Pick one

Solution

Adding, we get $0.9+0.09=0.99$ .

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.