As shown in the figure, divide a square with an area of 1 into two rectangles with an area of 12, then divide one of the rectangles with an area of 12 into two rectangles with an area of 14, and then divide one of the rectangles with an area of 14 into two rectangles with an area of 18. In this way, try to use the law revealed by the figure to calculate: 1 + 12 + 14 + 18 + 116 + 132 + 164 + 1128 + 1256=______ ．

As shown in the figure, divide a square with an area of 1 into two rectangles with an area of 12, then divide one of the rectangles with an area of 12 into two rectangles with an area of 14, and then divide one of the rectangles with an area of 14 into two rectangles with an area of 18. In this way, try to use the law revealed by the figure to calculate: 1 + 12 + 14 + 18 + 116 + 132 + 164 + 1128 + 1256=______ ．

1 + 12 + 14 + 18 + 116 + 132 + 164 + 1128 + 1256 = 1 + (12 + 14 + 18 + 116 + 132 + 164 + 1128 + 1256) = 1 + 1-1256 = 511256

Reduce one side of a square by one fourth and increase the other side by four meters to get a rectangle. The area of the rectangle is the same as that of the original square
What is the area of the original square?
Using equation

1－1/4＝3/4
1/4÷3/4＝1/3
4 △ 1 / 3 = 12m
12 × 12 = 144 square meters

The volume of a brick is 2.3 decimeters. To build a brick wall with a length of 24 meters, a thickness of 0.4 meters and a height of 2.5 meters, how many bricks do you need

24 * 0.4 * 2.5 = 24 cubic meters = 24000 cubic decimeters
24000÷2.3=10435

Cut the cube wood block with the edge length of one meter into small cubes with the edge length of one decimeter. These small cubes are connected one by one. How long can they be arranged?

First change the unit: 1m = 10 decimeters, which means that the large volume is 10.10.10 = 1000 square decimeters, and the small volume is 1 square decimeter, which can be divided into 1000 pieces, and the row is 1000 decimeters, that is 100 meters

Pour 36 liters of water into a 4-decimeter cube container. The height of the water is () cm. Cut the 4-decimeter cube into 2-minute cubes
Pour 36 liters of water into a 4 - decimeter cube container with a height of () cm
Cut the cube with the edge length of 4 decimeters into small cubes with the edge length of 2 decimeters, and you can cut () cubes
The edge length, surface area and volume of a cube increase by 5 times and () times respectively
A cuboid wood, 1.2 meters long, 0.8 meters wide, 0.5 meters high, saw off a largest cube, there are still () cubic meters of wood
Hurry up!

\The height of water is (22.5) cm. Cut the cube with the edge length of 4 decimeters into small cubes with the edge length of 2 decimeters, you can cut (8). The edge length of a cube is expanded to 5 times of the original, the surface area is expanded to (25) times of the original, and the volume is expanded

Mingming school to Mingming school to transform the ground, with the side length of 2 decimeters of square bricks to lay a ground, need 1800. If use the area of 9 square meters
How many pieces of square bricks are needed for this fast floor?
If the answer is good, there will be high! 111111

Proportional equation
X blocks are required
9X=1800×（2×2）
X=1800×4÷9
X=800
Arithmetic method
1800 × (2 × 2) △ 9 = 800 (pieces)
Have a good time

For the floor of a room, 960 pieces of square bricks with an area of 9 square decimeters are needed. If the floor is paved with square bricks with a side length of 4 decimeters, how many pieces are needed?
It's urgent!

This is the inverse proportion
Set X blocks
4×4×x=9×960
16x=8640
x=540
A: if you use square bricks with a side length of 4 decimeters, you need 540 pieces

It takes 720 pieces to lay a floor with 4-decimeter-long square bricks. How many pieces need to be replaced with 9-decimeter-square bricks?

4*4*720/9=1280

Xiao Ming's house is decorated with 480 square bricks covering an area of 9 square decimeters, which just covers the floor of his study. If we use the square bricks with a side length of 4 decimeters, how many do we need?

Suppose you need x square bricks, 4 × 4x = 9 × 480, & nbsp; & nbsp; 16x = 4320, & nbsp; & nbsp; X = 270; answer: you need 270 square bricks

If the floor of the conference room is paved with square bricks, 450 square bricks with a side length of 2 decimeters are needed. If the floor is paved with square bricks with an area of 9 square decimeters, how many are needed?
On a map, the distance between a and B is 4cm, and the distance between B and C is 5.5cm. Given that the actual distance between a and B is 120km, what is the actual distance between B and C?
How to do these two questions? Online and so on, speed addition
Find the formula

200 yuan
165km