What is Imputed Value?

Estimation is a Chinese word. Pinyin is suàn, which means rough estimation. Synonyms are budget and estimation. From "On the Bridge Construction Site" by Liu Binyan: "It is clearly estimated and will not be investigated."

The estimates here are not estimates in mathematical arithmetic. Famous scholar

1. Rounding: 0, 1, 2, 3, 4, all without rounding, 5, 6, 7, 8, 9, and rounding.

2. One step: One step is to remove the extra digits and add 1 to the last digit of the reserved part. The approximate value obtained in this way is an excess approximate value (that is, greater than the exact value). For example, a sack can hold 200 kilograms of wheat, and now there are 880 kilograms of wheat, how many sacks can be filled? Divide 880 by 200, the quotient is 4, and the remainder is 80. Even if 4 sacks cannot be used, it must be filled with 5 sacks.

3. Tail-removing method: The tail-removing method is a common mathematical method of removing the decimal part of a number and taking its integer part. Its value is an approximate value (that is, less than the exact value). This method is often used in life In.

4. Quantity unit estimation method: use the objects in real life to perceive the quantity unit , and how much the actual experience data is