calculating
adj. 精明的，精于算计的
v. 计算；预测（calculate 的现在分词形式）
例句
I can't take a bite without calculating how many calories I am taking.
我每吃一口都得计算一下自己摄入了多少卡路里。
I never realized you could be so calculating.
我真没有想到你会这样有心计。
《牛津词典》
I think you have made an error in calculating the total.
我想你在计算总数时出了差错。
