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计算一块土地面积时,只要量出地块的长(米)和宽(米),然后相乘,得出一个乘数;接着把乘数除二、得出商数;最后把乘数和商数相加,并从加数的个位开始向左数三位,点上小数点,即是那块土地的面积。例如:一块土地长56米,宽33米,面积计算顺序是: ①56×33=1848 ②1848÷2=924 ③1848+924=2772 ④2.772亩,即要计算的面积我们用普通法验算:56×33×O.0015=2.772(亩)
To calculate the area of a piece of land, simply multiply the length (meters) and widths (meters) of the lot by multiplying it to obtain a multiplier; then dividing the multiplier by two to give the quotient; and finally multiplying the multiplier by the quotient The number of additions, and from the addend of a few bits to the left three, point on the decimal point, that is, the area of that piece of land. For example: a piece of land is 56 meters long, 33 meters wide, the area is calculated in the order: ①56 × 33 = 1848 ②1848 ÷ 2 = 924 ③1848 +924 = 2772 ④2.772 acres, that is, to calculate the area We use the common law calculation: 56 × 33 × O.0015 = 2.772 (mu)