Application questions such as: How much does it cost to buy six apples for one apple in 5 yuan?

5×6=30 (yuan)

Answer: Buy six apples and one 30 yuan.

In the formula, according to the total price = unit price × quantity, one apple 5 yuan is the unit price, six apples are the quantity and the price of six apples is the total price, so the total price can be calculated by 5×6.

Relationship between unit price, quantity and total price:

1, unit price × quantity = total price

2. Total price/unit price = quantity

3. Total price/quantity = unit price

Attention should be paid to mathematical application problems:

1, carefully examine the questions. When doing a problem, the taboo is not to look at the problem carefully and not to work hard. As a result, not only a lot of time is wasted, but sometimes wrong choices are made, resulting in half the effort.

Therefore, we must read through the questions and quickly think of concepts, formulas, theorems and problems that should be paid attention to in knowledge points. To explore the implied conditions in the topic, we should discard the false and retain the true, and understand the true meaning of the topic. ?

2. Pay attention to solving problems. In addition to solving problems directly according to ideas, we should also pay attention to some special methods, such as special value method, substitution method, exclusion method, verification method, combination of numbers and shapes and so on.