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Put 1 1 watermelon on three plates on average. How many pieces do you put in each plate? How much is left? How to do
Put three watermelons on each plate and there are two watermelons left.

1 1÷3=3? 2

Mathematical problems are generated by counting, calculating, measuring and observing the shape and motion of objects through abstract and logical reasoning. Mathematical problems can be roughly divided into fill-in-the-blank questions, true and false questions, multiple-choice questions, calculation questions, application questions, proof questions, drawing questions, thinking questions, reading questions, regular questions and problem solving. Skillful problem solving depends on the flexible use of the knowledge you usually study. They are the concrete embodiment of mathematical knowledge and can show the infinite charm of mathematics.