都正确。这个用法确实比较乱。加或不加 '均可，甚至加连字符-也可。例如：

1. A thousand pounds worth of jewellery and silver has been stolen.  

价值1,000英镑的珠宝和银饰被盗。

来自柯林斯例句

2. They had shoplifted thousands of dollars' worth of merchandise.  

他们已经偷了商店价值好几千美元的商品。

来自柯林斯例句

3. This led Zagreb's twin town, Mainz, to donate £70,000-worth of high-quality equipment.  

这使得萨格勒布的友好城市美因茨捐赠了价值7万英镑的高品质装备。

来自柯林斯例句

4. The microscope contains a few hundred dollars-worth of electronic bits and bobs.  

这架显微镜内有价值数百美元的电子元件。

来自柯林斯例句

5. I went and bought about six dollars' worth of potato chips.  

我去买了大约6美元的薯条。

来自柯林斯例句

6. Thousands of pounds worth of drugs were seized in dawn raids yesterday.  

警方在昨天的凌晨突袭中缴获了价值数千英镑的毒品。

来自柯林斯例句

7. Bootleggers sold 75 million dollars-worth of copies.  

非法书商们售出了价值7,500万美元的盗版书。

来自柯林斯例句

8. millions of pounds' worth of Batman merchandising  

价值数百万英镑的《蝙蝠侠》的衍生产品

来自《权威词典》

9.  The fire burned up more than 50000 pounds worth of antiques.  

这次大火烧毁了价值50000英镑的古物。