纯小数,就是整数部分是零的小数,如0.4、0.025等纯小数相乘,在财会工作中经常遇到,珠算纯小数乘积的简易定位方法——定点加零照写法,可分三步: 第一步——定点,就是确定小数点的位置.纯小数的乘积小于1,因此,纯小数相乘,就可首先在其算式“=”号右方写上0.,将乘积小数点的位置确定下来,例: (1)0.99×0.99=0.(2)0.058×0.0049=0. (3)0.24×0.016=0. 第二步——加零,就是把被乘数和乘数的小数点 Pure decimal, is the integer part of the decimal, such as 0.4,0.025 and other pure decimal multiplication, often encountered in the accounting work, abacus product of a simple decimal positioning method - fixed-point plus zero lighting can be divided into three steps: The first step - fixed-point, is to determine the position of the decimal point. The product of pure decimals is less than 1, so by multiplying the pure decimal, you can first write 0. to the right of its arithmetic “=” sign, (1) 0.99 × 0.99 = 0. (2) 0.058 × 0.0049 = 0. (3) 0.24 × 0.016 = 0. The second step - plus zero, that is, the multiplicand and multiplier Decimal point