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How to calculate the burning area of 200 square meters?
How many squares are there in 200 30×60 burning boards?

The answer is 36 square meters. Generally, 30×60 burned board means 30cm× 60cm, so we should unify the units of 30cm and 60cm into meters, that is, 30cm = 0.3m and 60cm = 0.6cm First, calculate the area of each burned board, which is equal to length times width, that is, 0.3x0.6 2 0. 18 (square meter). Finally, figure out how many square meters there are in 200 blocks, 200×0. 18=36 (square meters).