### What is the largest two-digit decimal with an integer part of 2 and what is the smallest two-digit decimal

The largest two-digit decimal that qualifies is 2.99

The smallest two-digit decimal that qualifies is 2.00.

### What is the method of retaining two decimal places?

Retaining two decimal places means that when a number is taken as an approximation, the first two digits after the decimal point are retained and the third digit is rounded up. For example, 1.0023 is 1.00 if two decimal places are retained.

The least significant digit is the percentile, and a zero is added directly after the digit that is not enough, for example, 2.3 = 2.30.

Retaining two decimal places is a method of converting an approximate number, and the converted value is similar to the exact number value.

The homotypic algorithm

Rounding four to five is a counting retention method for accuracy. Here, “four” is less than five means, “six” is more than five means, “five” is the rounding bit after the tail number of five words look at the previous one, odd into even not into. Such as 1.25 to keep a decimal, because 2 is even, so is 1.2. Another example is 1.35, because 3 is odd, so is 1.4.

From a statistical point of view, “rounding up to five double” than “rounding up to five” to be scientific, which makes the result of rounding up some of the results of the larger, some smaller, more average. Instead of rounding up to five, which leads to results in favor of large numbers.