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一、大小数错误的查找方法。大小数错误是指将某一数字记在不同数位上的错误,如将1误记为10,将36误记为360,将7500误记为75等。 (一)根据大小数据的特点查找。1、相邻一位大小数错误的特点:任何一个相邻一位的大小数的差数,都能被9整除。若已知差数为P,求大数和小数,则小数=P÷9,大数=10×小数。例如:已知错帐的差数为486,求大小数。解得:小数=486÷9=54,大数=10×54=540。2、相邻两位数及更多位数大小数错误的特点:相邻两位的大小数,其大数的位数是小数的100倍,以
First, the size of the wrong way to find. Large number of errors refers to a number recorded in different digits of the error, such as a misjudgment of 10, will be 36 mistaken for 360, the 7500 will be mistaken for 75 and so on. (A) Find according to the size of the data characteristics. 1, adjacent to a large number of errors in the characteristics of the number of any one adjacent one of the size difference, can be divided by 9. If you know the difference is P, seeking large numbers and decimals, the decimal = P ÷ 9, the largest number = 10 × decimal. For example: the difference between the known mismatch is 486, find the size of the number. Solution: Decimal = 486 ÷ 9 = 54, Large = 10 × 54 = 540.2, the number of adjacent two digits and more digits wrong Features: The number of adjacent two large and large, the number of The number of digits is 100 times the decimal