How many strokes should "Cao" be when calculating the name strokes? Is it cost-effective according to Kangxi dictionary? It is clear that "Cao" is eleven strokes, but why is it ten strokes in Kangxi dictionary? But "Cao" is fifteen strokes? Can Kangxi dictionary make mistakes?

How many strokes should "Cao" be when calculating the name strokes? Is it cost-effective according to Kangxi dictionary? It is clear that "Cao" is eleven strokes, but why is it ten strokes in Kangxi dictionary? But "Cao" is fifteen strokes? Can Kangxi dictionary make mistakes?


Eleven paintings, maybe the dictionary is wrong again!



What is the stroke order of Tizi


Mention
There are 12 strokes



What is the stroke order of the word "dou" for a ride?


Vertical lifting vertical bending horizontal bending horizontal bending horizontal vertical bending hook



The computer room of the school is paved with 1800 tiles, 40cm long, 20cm wide and 1cm thick. What is the area of the computer room?


40 × 20 × 1800 = 1440000 (square centimeter) = 144 (square meter) a: the area of this computer room is 144 square meters



Tian Xiaoyan kitchen floor perimeter is 128 decimeters, paving tiles as shown in the following figure, the length and width of the kitchen are how many decimeters
The perimeter of Tian Xiaoyan's kitchen floor is 128 decimeters. The floor tiles are as follows. How many decimeters are the length and width of the kitchen?


128 / 2 = 64 (DM) 3 + 5 = 8 width: 64 * 3 / 8 = 24 (DM) length: 61 * 5 / 8 = 40 (DM)



Xiaoming's living room is 6 meters long and 4 meters wide. Now we are going to lay floor tiles. There are two kinds of floor tiles. Which one can save money
Type a brick: side length 0.2m, 3 yuan per piece
Type B brick: side length 0.5m, 9 yuan per piece
We need to work out the formula


4x6=24
24/(0.5x0.5)x9=864
24/(0.2x0.2)x3=1800
864 is less than 1800, so the floor tile with 0.5m edge length saves money



Xiaoming's living room is 6 meters long and 4.5 meters wide. Now we are going to lay floor tiles. There are two kinds of floor tiles. Which one is cheaper?
Type A: 30cm x 30cm 10 yuan per piece
Type B: 50cm x 50cm, 30 yuan per piece


A is about 300 yuan
Species B is about 324



Now we use the same size of black and white square tiles to lay the floor tiles as shown in the figure. How many black tiles are needed in the n-th figure?
The first picture is a rectangle with a length of 5 and a width of 3, standing vertically. In the second row, there is a black one in the middle, in the third row, the first and third are black, and in the fourth row, the second is black.


3×1+1=4,
3×2+1=7,
3×3+1=10,
… ,
By analogy, we can see that the black tile of figure n = 3 × n + 1 = 3N + 1



A kitchen is 2.4 meters long, 2 meters wide and 6 meters wide, and its four walls are pasted with ceramic tiles (excluding the area of doors and windows of 3.68 square meters)
If you buy a square tile with a side length of 2 decimeters, how many pieces do you need?


480 yuan



A family kitchen needs 480 tiles of the same specification of a certain brand. The tiles sold in the decoration material store are packaged in large and small packages. The large package is 50 pieces per package, and the price is 30 yuan; the small package is 30 pieces per package, and the price is 20 yuan?


According to the meaning of the question, there are three purchase schemes. Scheme 1: only buy large package, you need to buy 48050 = 485 packages. Because there is no folding package, you only need to buy 10 packages, and the cost is 30 × 10 = 300 yuan. Scheme 2: only buy small package, you need to buy 48030 = 16 packages, and the cost is 16 × 20 = 320 yuan