如何使用 "calculating" 造句

1. Jeff may sat alone at a table calculating algebra problems .
杰夫梅独自坐在桌子上计算代数问题。
2. Calculating risk can be highly subjective .
风险计算是件主观性很强的活儿。
3. What result is it calculating ?
计算的结果是什么?
4. A change in calculating housing expenses had the opposite effect .
住房费用计算方法的变化影响则与之相反。
5. I catch myself calculating how much money I should leave for him .
我发现我自己正在计算我应该留给他多少钱。