Ask ceramic tile 800X800 to be equal to how many square?

Ask ceramic tile 800X800 to be equal to how many square?

800 x 800 is equal to 0.64 cubic meters

120 square meters of house about 800X800 tiles how many

120 divided by 0.64 = 187.5

71 square meters 800X800 floor tiles to how many pieces

Comrades, mathematics, suanza
71 / (0.8 * 0.8) = 111 yuan, including the loss, 120 yuan is enough

A swimming pool is 25m long, 20m wide and 2m deep. How many pieces are needed to paste the bottom with square tiles with an area of 4dm2?

25 × 20 = 500 (square meter) = 50000 (square decimeter), 50000 ／ 4 = 12500 (piece); answer: 12500 pieces are needed

If a classroom is paved with square bricks, it needs 640 pieces with a side length of 0.3 meters. If it is replaced with square bricks with an area of 0.16 square meters, how many pieces do it need?

Suppose x bricks are needed if the area is 0.16 square meters; 0.16x = 0.3 × 0.3 × 640, 0.16x = 0.9 × 64, & nbsp; & nbsp; X = 0.9 × 640.16, & nbsp; & nbsp; X = 360; answer: 360 bricks are needed if the area is 0.16 square meters

If a room is paved with 16 square decimeters of square bricks, it needs 87.5 pieces. If it is paved with 25 square decimeters of square bricks, it needs more
Few blocks? (with proportional solution)

The solution needs x blocks
Positive proportion
16:25=x：87.5
25x=16×87.5
x=56
Inverse proportion
25x=16×87.5
25x=1400
x=56

Lele's room needs 275 pieces of square bricks with a side length of four decimeters. If it uses a side length of five decimeters, how many pieces of square bricks do it need?

275×4/5

If a room is paved with 30 cm long square bricks, 800 pieces are needed. If a room is paved with 50 cm long square bricks, how many pieces are needed? (solve by proportion)

Let x block be required, 30 × 30 × 800 = 50 × 50 × X & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2500x = 900 × 800 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2500x = 720000 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 288 A: 288 blocks are required

Xiaowei's household needs 216 square bricks with a side length of 2 decimeters. If we use 3 decimeters square bricks instead, how many do we need?

According to the meaning of the title, & nbsp; 2 × 2 × 216 = 3 × 3 × X & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 864 = 9x & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 96, a: if you use a 3-decimeter-long brick, you need 96

The length of the classroom is 8 meters and the width is 6 meters. If the floor is paved with square bricks with a side length of 2 decimeters, how many square bricks do you need? If each brick is 30 yuan, how much is it altogether?

8 × 6 = 48 (square meters) = 4800 square decimeters 2 × 2 = 4 (square decimeters) 4800 △ 4 = 1200 (pieces) 1200 × 30 = 36000 (yuan) answer: 1200 square bricks are needed, totally 36000 yuan