速, 兩位整數(shù)一位小數(shù)的顯示方式具有更高的顯示精度.Speed, two integer a decimal mode has higher precision of the show.根據(jù)小數(shù)的性質(zhì):小數(shù)末尾的0去掉,小數(shù)的大小不變.When we addition and subtraction of decimals, we should cross out the 0 at the end.用小數(shù)的形式表達(dá),它們是很難使用的數(shù)字...