Meimei's kitchen floor is 45dm in length and 25dm in width. Mother wants to use square bricks to lay the floor. How many decimeters of square bricks can she just finish? (the side length of the floor tile should be the whole decimeter) the process should be more detailed. 3q, due tomorrow,

Meimei's kitchen floor is 45dm in length and 25dm in width. Mother wants to use square bricks to lay the floor. How many decimeters of square bricks can she just finish? (the side length of the floor tile should be the whole decimeter) the process should be more detailed. 3q, due tomorrow,

45*25=1125
A square with a side length of 5DM can be paved exactly
That's about it. Each brick is a 5DM square
The rectangle is paved with 9 bricks in length and 5 bricks in width

There is a rectangular tile 12 cm long, 8 cm wide, with such a tile to lay a square floor, at least how many pieces?

First, find the least common multiple of 12 and 8, 12 = 2x2, then X3 8 = 2x2x2, so the least common multiple is 2x2x2x3 = 24, and the minimum side length of the square is 24 cm 24 △ 12 = 2 24 △ 12

Use 20cm long and 8cm wide tiles to paste a square wall. If the square wall is just made of complete tiles, what is the minimum side length of the square wall? How many such tiles do you need?

(1) 20 = 2 × 2 × 5, 8 = 2 × 2 × 2, so the minimum common multiple of 20 and 8 is 2 × 2 × 5 × 2 = 40, that is, the minimum side length of the square wall is 40 cm; (2) the area of the wall: 40 × 40 = 1600 (square cm), the area of the ceramic tile: 20 × 8 = 160 (square cm), the required ceramic tile for pasting the wall: 1600 △ 160 = 10 (pieces), a: the minimum side length of the square wall is 40 cm; it needs 10 cm Only one such tile can be pasted

The bottom of a floor tile is 8 cm long and 6 cm wide
1. What is the minimum area of the square? 2. How many bricks should be used to make the smallest square

Solution 1: the floor tile is 8cm in length and 6cm in width, and the least common multiple of 6 and 8 is 2424 / 6 = 4,24 / 8 = 3, that is, three bricks need to be laid along the length direction and four bricks need to be laid along the width direction. The minimum area is (6 × 4) × (8 × 3) = 24 & # 1778; = 576 (CM & # 178;). Answer: the minimum area of this square is 576cm & # 178;. Solution 2: 3 × 4 = 12

Lay a square with 15 cm long and 9 cm wide rectangular tiles. How many cm is the minimum side length of this square? How many such tiles do you need at least?

15=5×3
9=3×3
So the least common multiple is 5 × 3 × 3 = 45
So the minimum side length of this square is 45 cm
(45÷15)×(45÷9)=15
So at least 15 of these tiles

Xiaoxiaojia kitchen is 2.4 meters long and 1.8 meters wide. It is paved with square tiles with side length of 0.3 meters

2.4×1.8÷0.09=48

A living room has 72 tiles. If the side length of each tile is 5 decimeters, how many square meters does the living room have?

A brick side length 5 decimeters = = 0.5 meters, a brick area = = 0.5 * 0.5 = 0.025 square meters
Area of 72 bricks = = 72 * 0.025 = = 18 square meters
But in the actual paving process should have cut off the loss, as for how much loss
It depends on the rules of the living room
Generally, if it is rectangular, it should be about 15-17 square meters
If the living room was heteromorphic, it would be even less

Xiao Li's living room is paved with 72 floor tiles. The area of every 8 floor tiles is 2 square meters. How many square meters is Xiao Li's living room?
To list

Xiao Li's living room is 72 / 8 * 2 = 18 square meters

Mingming's new room is going to be paved with square bricks. If you use 0.09 square meters of square bricks, you need 160 pieces. If you use 0.4 meters of square bricks, how many pieces?

How many pieces are needed: 0.09 × 160 ^ (0.4 × 0.4), = 0.09 × 160 ^ 0.16, = 14.4 ^ 0.16, = 90 (pieces). A: if you use square bricks with side length of 0.4m, you need 90 pieces

To pave the floor of a room, 240 square bricks with a side length of 3 decimeters are needed. How many square bricks with a side length of 6 decimeters are needed?

If the side length of 6 decimeters square brick is selected, X pieces, (3 × 3) × 240 = (6 × 6) × x, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 3 × 3 × 2406 × 6, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 60; answer: if the side length of 6 decimeters square brick is selected, 60 pieces are required