Joke Collection Website - Joke collection - The cup originally contained 800 ml of water. Pour the water into the cup. The consumption situation is as shown in the picture on the right. Find the water in the cup.
The cup originally contained 800 ml of water. Pour the water into the cup. The consumption situation is as shown in the picture on the right. Find the water in the cup.
If you use an equation to solve:
Suppose: A originally had X milliliters of water, and B originally had Y milliliters of water.
Then X+Y=800
X-50-(y+50)=30
The final solution is X=465, Y=335
Compound word problem solving ideas:
It is composed of two or more simple word problems that are related to each other.
1. To understand the meaning of the question is to clarify the known conditions and requirements in the application question.
2. Analyzing quantitative relationships is to analyze the known quantity and the unknown quantity, the relationship between the known quantity and the unknown quantity, find a way to solve the problem, and determine what to count first, what to count next, and what to count best. .
3. Column solution is to list the formulas and calculate them based on analysis.
4. Checking the calculation and giving the answer is to check whether the solution process is reasonable, whether the result is correct, whether it is consistent with the conditions of the original question, and finally write the answer.
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