Elementary School Math Score Questions, Primary School Math Score Questions ?

Use the drawing method to solve the difficult fraction problem in elementary school mathematics.

2/3 of 150 cm is 100 cm.

5/8 of 400 kg is 250 kg.

150 two-thirds = 100 [cm] 400 five-eighths = 250 kg Absolutely.

Category: Transportation, Accommodation, Meals, Tickets, Shopping.

Cost 240 (300) 360 180 (420).

Proportion 4 25 1 5 (6 25 ) 3 25 ) 7 25).

Total cost: 240 (4 25) 1500

The total cost is:

240 4 25 1500 (yuan).

Cost of accommodation. 1500 1 5 300 (yuan).

Shopping costs. 1500-240-300-360-180 420 (RMB) Shopping expenses account for total expenditure.

Hello, I'm special == Sheng, I'm glad to help you solve your problem.

Because the number of people who subscribe to "Youth" is the smallest, at 60%.

Even if all 60% of the students subscribe to the other two magazines, the number of people who subscribe to all three magazines will only account for 60% of the class at most

85%-10%=75%=1500 yuan.

1500 RMB.

Obviously, there are a total of 2,000 New Year's money.

5 to 3 more ().

A 2 (I remember the first grade teacher said to me 5 to 3 more than 2) B 2 3 is two-thirds (I remember the sixth grade teacher said to me 5 to 3 more 2 3) This question If you take the test in the entrance examination, you should use the thinking of the first grade or the thinking of the sixth grade, you have to see how it came out, if you write it after more"Bi lacks its penitential boy"(ie.)"5 to 3 more of it"), then choose B;

If that's all there is to it, you can fill in both.

It depends on the requirements of the question: if it says that 5 is a few points more than 3, choose B, and if it is more than 3, it is A

In the entrance exam, there is no need to have a math problem in the first grade, so it is more likely to be a B.

The exam for the entrance examination can't be that simple, so I chose B

It should be 1st grade thinking; So choose A!!

1. It should be a sixth-grade thinking; So choose B

……And I also did 、、、 wrong

If the painting works account for one-fifth of the total number of paper-cut works, then the painting works are equivalent to 2 5 + 1 5 of the total works, which is 2 5 + 1 5 = 3 5

If the painting is less than the calligraphy work, it accounts for one-fifth of the total number of works, then the calligraphy work is equivalent to 3 5-1 5 of the total work, which is 3 5-1 5 = 2 5

If you continue to do the math in this way, the result is: there is a problem with the question:

2 5 + 3 5 + 2 5 = 9 5 1, or you are not clear about the topic, confirm and resend it.

Think of 1 2 as 3 6

Think of 3 5 as 9 15

So an = 2n-1) is 3n

When n = 100, an = 199 300, so the hundredth number is 199 300

It can be seen as 1 3 3 6 5 and 9 7 12 9 15 11 18.

Obviously, the nth number is the last beat (2n-1) 3n, and the hundredth number is 199 300.

The result is 1

The equation is 2010*1 2*2 3*3 4*4 5*.2009/2010=1

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