Maths Olympiad Prep

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, 2020

Algebra Difficulty 1.0 Junior Find the answer Canada

The value of 202020+20\dfrac{20-20}{20+20} is

00
11
1010
2-2
22

A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.

Solution

Simplifying, 202020+20=040=0\dfrac{20-20}{20+20} = \dfrac{0}{40} = 0.

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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.