翻译和例句:
as positive number (正数) and negative number (负数). In their maths class, difficult rules are explained ……
interesting. Each player has 12 cards. There is a positive number (正数) or a negative number (负数) on each ……
on the Mathematical Art (《九章算术》), explained doing math with positive numbers (正数) and negative numbers... numbers (正数) and negative numbers (负数). People knew something was between these two groups of numbers ……
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