The question of the second grade of elementary school, this is too difficult, I really admire the le

Boss Wang's correct loss of money is 200. To see the formula, see below!

The capital of 18 yuan, and the 3 yuan with the profit is 21 yuan, and the profit is also money, so it must be counted. The counterfeit banknote of 100 yuan was also lost by the boss himself, and he also lost 97 yuan for the young man.

There are 98 gray chickens.

Because there are 86 white chickens.

Gray chicken: 86 + 12 = 98 (only).

Black chicken: 86-9=77 (only).

One, 86 white chickens, 12 more gray chickens, 98 gray chickens

Second, the white chicken is 86, the black chicken is less than 9, and the black chicken is more than 77.

Add the first number by 4, the second number by 4, multiply the third number by 4, and divide the fourth number by 4, then the four numbers will be exactly the same -- the first number + the second number = the third number multiplied by 4 and multiplied by 2 = the fourth number divided by 2

The third number * (2 * 4 + 1 + 2 * 2 * 4) = the third number * 25 = 50 So, the third number = 2

The first row of a number = 2 * 4 - 4 = 4

The number of springs in the second row = 2*4+4=12

The fourth number = 2 * 4 * 4 = 32

What is impossible with only "+" must be multiplied and divided.

To tell you with my IQ up to 9th grade, it's impossible time, and if there is no if this question is not an if, he must be wrong.

It's impossible, the title is wrong.

Student 2180, can be counted as 2200; Teacher 188, can be counted as 200, 2200 + 200 is 2400, not yet 2500, so you can sit down!

。。。It's so simple...

The first question can be 3x2=1x6, or 3x5=1x15, etc.

The second question is simpler, 2x2=2+2

Hehe, don't be confused. It's because you didn't teach second-grade math, and that's okay.

This question means to calculate the number of the formula problem first, and this is done. Of these, 4 9 miscalculated.

On the right is the question of the statistical part, which means that the answers to the questions on the left are counted, according to the requirements of the horizontal axis of the statistical chart, the product is smaller than 30 and counts how many formulas there are, and in the corresponding second column of squares, a question occupies a grid and paints a bar statistical chart.

For example, if the product is smaller than 30 and there are 5 questions, draw 5 squares from the bottom to the top.

If the product is larger than 30 and smaller than 40, there are only two questions, 4 9 and 7 5, so 2 squares are painted.

The latter is the same as this method.

4x9=36,,, not 37, and then divide those products into each segment, for example, there are 5 smaller than 30 in all the results on the left, so paint 5 cuboids in the segment with a product less than 30,,, in turn, draw a bar chart, you can ask me if you don't understand.

It's to coat the column, and the product is smaller than 30, count a few equations, and then coat it. . .

Do the math, and if the product is smaller than 30, there are a few squares, and so on.

Happy Valentine's Day