A kitchen is 3 6 long and 2 7 wide and 4 3 high and requires 3040 tiles

When you see "high", you know, this can only be a math problem, how can there be a 4.3-meter-high kitchen?

square meters, do you need to calculate loss for slice math problems?

The area of the kitchen is: (square meters, this area should be deducted from the area of doors and windows, and the exact amount of paving will be known only after deduction.) There are generally no tiles on the market, generally ceramic tiles, and the area of a single piece is square meters.

You divide the actual amount by the area of a single tile, the tile in the process of paving due to the irregularity of the wall, there is a certain loss, the general kitchen loss is 5%, so you know how many tiles you need!

The wall area of the kitchen is squared, and the area of a brick is squared, divided by it, which is equal to one brick, plus the loss needs 460 pieces to be enough. The ground area is squared, divided, equals 81 bricks. Plus the loss of 90 bricks is enough.

Friends on the market has no 300 * 400 porcelain pieces for sale, the current specifications are 300 * 450, if this specification of your kitchen is not lost then you need 420 pieces, it is recommended that you buy 440 pieces, more to return, so as not to you in the future.