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  3. In reading mathematics problems, you should first read to understand the general

In reading mathematics problems, you should first read to understand the general

游客2025-07-24  18
问题 In reading mathematics problems, you should first read to understand the general meaning of the problem and question to be answered. At first you need not notice the exact figures given. Look at the following problem.
   James wants to buy a pair of roller skates that were priced at $6.50. One day he saw the price had been reduced to $5.25. He has $4.50. How much more money does he need to pay for the skates?
   The first reading of this problem might be as follows:
   James wants to buy a pair of roller skates that were priced at a certain amount. One day he saw that the price had fallen. How much more money does he need to pay for the skates?
   From the reading you can decide that you must subtract (减去) what James has from the cost of the skates to answer the question. Then look at the problem and get the exact figures. You will notice that you do not need to know the original price of the skates. [br] We can infer from this passage that ______.
选项 A、the roller skates were sold at a reduced price because they were used
B、fast readers can solve the most maths problems
C、discovering how to do a problem well comes from careful reading
D、exact figures are subtracted from the original price
答案 C
解析
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