American odds

In the United States, American odds use plus and minus signs anchored to a hundred-unit baseline.在美国，美式赔率使用以一百个单位为基准的正负符号。

The textbook explains that American odds of -150 mean staking 150 units to win 100.教科书解释说，-150的美式赔率意味着下注150个单位以赢得100个单位。