I quadruple checked my calculations on this, okay?

我把计算数据核查了四遍？

Fill in the cash book carefully and always check your calculations.

【check】填写现金账簿时要仔细，要不断检查计算结果。

Very rough numbers, and I certainly would invite others to check our calculations because they may arrive at different conclusions.

EM：非常粗略的数字，我当然会邀请其他人检查我们的计算，因为他们可能会得出不同的结论。