1.   A simple calculation will clarify the point.

2.   A simple calculation will show that these figures are incorrect.

3.   This simple calculation is of course incorrect...

4.   They can be used also to compare long-, medium- and short-term programmes, which fundamentally very simple calculation.

5.   Although the duty increases on petrol are above inflation, they are not out of line in a longer-term perspective, as a simple calculation shows.

6.   He recommends simple calculations to find companies doing better than their competitors.

7.   In a series of simple calculations relying on research by others, Sen showed that women generally outnumber men in Europe and North America.

8.   It was not a simple calculation.

9.   Simple calculation errors are a flag for IRS auditors, and one potential problem of manual preparation that is eliminated when you use your computer.

10.   Simple calculations would lead one to assume Brown has a lock.