That is, to observe the memory of the word and other words of the word shape comparison, so that they add, subtract, exchange, transfer letter has become a new word.
即观察要记忆的单词和其他的单词的词形，进行比较，使之加、减、换、调一个字母就成了另一个新单词。
2
Subtract the number 11 from the value in memory location 2.
从位置2中的数字中减去11。
3
The time required for one subtract operation, excluding the time required for getting data from the memory and giving the result back to the memory.