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How did you find the junior maths challenge 2017? What did you put for each question? Can you please tell em as I am worried that I failed:(? How does speciation occur? Why Nitrogen monoxide doesnâ€™t react with water ? Math question-If you roll a pair of dice, what is the probability of not getting a sum of 7? Use division to find all the whole number ratios equivalent to 168:56.?